Hezbollah armed strength

The distribution of the Shia population in Lebanon.

In 1975, Lebanon collapsed into civil war. Three years later, the Palestine Liberation Organization had occupied much southern Lebanon in an attempt to raise an army and destroy the state of Israel. Israel invaded in 1982 and destroyed the PLO, but occupied southern Lebanon and created a Christian proxy militia, the South Lebanon Army (SLA), to hold the territory. This strip of land, a narrow band running the length of the Israeli border, was termed the "security zone." Guerrillas and partisans attacked the occupiers. "The Lebanese Shia, driven by a desire to gather forces to fight the Israeli occupation of southern Lebanon, founded Hezbollah (the Party of God) in 1982," with the organization being named and reorganized in 1985.[10]

A veiled Shia woman in southern Lebanon beside a Hizballah slogan in the 1980s.

In 1982, hundreds of Iranian Revolutionary Guards traveled to Lebanon's rugged Bekaa Valley and began training various radical Shiite groups, including Islamic Amal and the Dawa Party.[31] The ongoing civil war and Israel's occupation of southern Lebanon created a radicalizing environment[32] where Hezbollah's religious fanaticism flourished. "The movement gained momentum quickly due to logistical, financial, and military support from both Syria and Iran"[10] and engaged Israel in guerrilla warfare. The physical geography of southern Lebanon is green and hilly with deep valleys, which favored the defender and was ideal for Hezbollah's "classic" guerrilla warfare.[30] Hezbollah's initial tactical choices involved human wave attacks, similar to those used by Iran in the Iran–Iraq War[33] in which some Hezbollah elements participated,[34] and terrorist tactics like kidnappings, aircraft hijackings, and mass-casualty suicide attacks to hurt Israel's resolve to fight.[35][26][lower-alpha 9] Hezbollah engaged in short raids to harass and kill and did not try to hold territory.[35] Although initially very successful,[26] these choices imposed a heavy cost on the organization in casualties and in public opinion.[35] The Central Intelligence Agency (CIA) in 1985 said the group's command and control was "virtually non-existent" and described the organization as not a hierarchy but defined by personal loyalties, personal rivalries, and family ties.[36] At this time, operational decisions were inefficiently passed through multiple clerics and imams in Beirut, who were far from the front lines.[35] Hezbollah did have a military structure and separate responsibility for operations, logistics, communications, intelligence, training and recruitment.[37] This lack of a hierarchy was similar to contemporary left-wing liberation movements.[38] Tactics around 1985–1986 were mainly planting landmines, detonating IEDs and occasionally gathering bands of armed men to shoot at the Israelis.[39] Hezbollah was not able to use sniping at this time.[39] An IDF intelligence officer described Hezbollah in the mid-1980s as a "rag-tag group" that "failed every time,"[26] and a 2014 review considers the group's tactical performance during this period poor and "very amateurish."[35] The CIA says that prior to spring 1986, the party's attacks were more "undisciplined acts of desperation" rather than military actions.[39]

Map of Hezbollah infiltration routes into the security zone.

Despite these problems, the party continued to grow in size, and in 1986 the CIA considered its military strength comparable to Lebanon's major militias.[40] The total membership of Hezbollah and closely affiliated groups grew from "several hundred" in 1983 to 2,000–3,000 in 1984[41] and to a few thousand in 1985,[37] and in mid-1986 the group massed 5,000 fighters for an event in the town of Baalbek in the Bekaa Valley.[40] Hezbollah was numerically smaller than Amal in 1986, but trends were favoring Hezbollah.[42] At this time, the organization had many part-time fighters and very few full-time members,[37] making it sensitive to casualties.[35] The organization's "skill in fighting the Israeli Army and Israel's proxy militia forces", as well as the corruption and inefficiency of Hezbollah's rival Amal, were critical in building credibility and public support.[32] In south Lebanon, Amal was widely seen as "too moderate" and accommodating of Israel, leading many radicalized Shia to back Hezbollah.[43] Hezbollah also received backing from pro-Hezbollah factions of Amal that had split from top Amal leadership.[43] Assessments of Hezbollah's position at this time vary. The CIA assessed at the time that "Hezbollah’s policy of confronting Israel and its surrogates is working"[40] and that Hezbollah held a "qualitative edge" in warfare over the SLA and Amal,[39] while an independent review says that by 1987 Hezbollah's strategic position was deteriorating.[33] On April 18, 1987, a Hezbollah human wave attack on a fortified SLA outpost failed and resulted in 24 dead, killing around 5% of the organization's full-time fighters in a single day.[33] As a consequence of this setback and others like it, Hezbollah was forced to change its strategy.[33] Outgunned by the Israelis and outspent by richer Lebanese sects and political parties, Hezbollah was forced to learn fast and reappraise its tactics, strategy, and organization.[26]

Suicide attacks gave way to "sophisticated, coordinated, and timed attacks" and short, quick ambushes.[44] In May 1987, Hezbollah began to coordinate infantry and artillery as combined arms and "improved their capability to attack Israeli helicopters, and demonstrated improvements in extracting wounded from the battlefield."[39] The group moved from squad-sized attacks around 1986 to platoon- and company-sized attacks by spring 1987, and launched a simultaneous attack on multiple targets in September 1987.[39] The party's attacks in the late 1980s became better planned and developed in complexity, especially in involving supporting fire.[39] Hezbollah removed most mid-level commanders in the late 1980s, delegating their authority to local commanders, which improved both operational performance and security.[35] The organization trimmed its ranks of loosely affiliated reservists and also switched its tactics to IEDs, ambushes, and indirect fire.[31] Originally, Hezbollah was just one of several militias fighting the Israelis, but by 1985 it was preeminent[45] and by the late 1980s it was clearly dominant.[lower-alpha 10]

Armed Hezbollah fighters patrol a neighborhood in southern Beirut.

Map of Hezbollah and Syrian control of Beirut in 1987.

In May 1988, after years of rivalry and clashes, Hezbollah waged a brief but intense war with Amal for control of Beirut's southern suburbs,[46] which at the time contained about one-quarter of the country's population.[40] As Amal was allied with Syria, Hezbollah also clashed with the Syrian Army troops occupying Lebanon at that time. Hezbollah won in the streetfighting and escalated to targeted assassinations and encouraging defections, forcing Amal to seek Syrian mediation. Amal and Hezbollah have remained begrudging allies ever since.[47] Although Hezbollah prevailed militarily, they soon imposed harsh Sharia law on their territory, such as banning coffee and unveiled women, and lost the hearts and minds of their people.[31][33] Most Lebanese are not Shiite, and even most of Lebanon's Shiites do not want to live in an Islamic state.[32] Support for Hezbollah is much higher than support for hardline Shiite religious rule.[32] Faced with declining public support and collapsing tourism, Hezbollah was forced to abandon its rhetoric of an Islamic republic and enter Lebanese politics in 1992.[31][33] Later efforts by Hezbollah to create social institutions, rebuild homes destroyed by the fighting, and bring sewage, jobs, and electricity to Shiite areas were critical for building public support.[33] 1989 saw the Taif Accord end the Lebanese Civil War and allowed Hezbollah to intensify its military efforts against the IDF.[30]

The group improved rapidly in the early 1990s, progressing from losing five fighters for every Israeli soldier killed in 1990 to 1.5 in 1993, a ratio that would roughly hold till the end of the decade.[48] Hezbollah ended human-wave attacks in 1990 and began conducting attacks with two units: an assault team and a fire support team with 81 mm mortars.[49] Accumulating combat experience was critical to this improvement in tactical proficiency,[35] and by the early 1990s, Hezbollah attacks were "characterized by careful planning and well-practiced professionalism."[50] Hezbollah in the early 1990s performed dedicated staff work, mirroring their Israeli adversaries.[49] Improved intelligence and reconnaissance abilities were also major drivers of better overall fighting ability.[35][49] In 1992, Hassan Nasrallah took control of Hezbollah, and he is generally considered to have provided strong leadership.[30][51] During the late 1980s and early 1990s, the party refocused on quality over quantity, substantially improved training,[35] and also accumulated more weapons: by the early 1990s, they "had amassed a significant arsenal."[26] Their small arms at this time included AK-47 and M16 rifles, Bangalore torpedoes, hand grenades, RPGs, and M40 recoilless rifles.[35] Iran was largely responsible for this arms increase and flew planeloads of weapons and ammo into Damascus every month.[31] Hezbollah introduced full combat uniforms in the early 1990s and improved their small-unit tactics and field security.[33]

Throughout the 1990s, Hezbollah waged a cat-and-mouse of IEDs with the IDF, with Hezbollah developing increasingly sophisticated IEDs and the IDF countermeasures. Hezbollah may have used cell phone-detonated IEDs against the IDF as early as 1995.[52] IEDs would be the main source of Israeli casualties during the occupation period,[33] and IED attacks increased about 50% each year from 1995 until 2000.[35] On September 29, 1992, the organization launched its first coordinated attack on multiple outposts.[31] In 1993, Hezbollah engaged in a seven day period of intensified fighting with Israel, which resulted in enormous damage to Lebanese infrastructure and civilians but little lasting military harm to either Hezbollah or Israel.[53] The conflict also saw the first major use of unguided Katyusha rockets fired onto civilian Israeli areas by Hezbollah, a tactic used by the PLO a decade before and one which would become a defining practice of Hezbollah in the future.[33] Hezbollah used its first AT-3 Sagger anti-tank guided missile (ATGM) on September 9, 1992 and used its first AT-4 Spigot missiles in 1997, the same year Hezbollah acquired the powerful American TOW ATGM.[31] The anti-tank weaponry used by the party steadily increased in quality over the duration of the insurgency.[49] By 1998, Hezbollah had destroyed three Merkava Mk 3 main battle tanks with these missiles.[54] Hezbollah started seriously developing anti-tank tactics in 1997, with a focus on being able to hit the same spot on a tank multiple times to defeat Israel's sophisticated reactive armor, a tactic that remains a part of Hezbollah's repertoire today.[23] Although Hezbollah's ATGM weaponry at the time – and still today – remains far inferior to the IDF's Spike system, being able to destroy Merkava tanks was a psychological victory.[35] Hezbollah also improved in their ability to use mortars and artillery during this time.[35] Not all of Hezbollah's weapons were as successful, however. Although Hezbollah acquired SA-7 'Grail' anti-aircraft missiles and first fired them in November 1991, they would have almost no success attacking Israeli aircraft.[31] Hezbollah's anti-aircraft abilities remain one of the group's largest weaknesses. Hezbollah fighters used "basic light infantry tactics" during this period,[55] like IEDs, mortars, and small ambushes.[56]

Hezbollah fighters with M16 rifles fire a BM-21 Grad "Katyusha" rocket launcher during the 1996 "April War."

Around 1995, a small group of fighters went to Bosnia to train Muslims in the civil war.[57] This was probably Hezbollah's first expeditionary endeavor. Hezbollah continued to find suicide attacks morally acceptable, but phased their usage out because they were no longer tactically effective; the group launched just four suicide attacks in the 1990s.[33] This is part of the party's long-term trend towards non-terrorism forms of violence.[38] During the 1990s, Hezbollah particularly targeted Shiite conscripts in the SLA for defections, desertion, or intelligence. Along with the organization's use of PSYOPS and propaganda warfare, this led to plummeting morale within the SLA.[35] SLA morale, and even IDF morale, declined as the insurgency went on.[35] Although the insurgency had sometimes seemed "tepid" in the early 1990s, the 1996 Operation Grapes of Wrath greatly increased the level of violence. Hezbollah and Israel engaged in a sixteen-day campaign marked by thousands of rocket and artillery strikes and intensified fighting. Hezbollah launched hundreds of rockets onto Israel during the conflict, and their "rocket performance [had] improved particularly between 1993 and 1996."[35] The campaign ended with the written April Understanding, which established well-understood "rules of the game" and allowed retaliation if either side crossed "red lines," particularly attacks on civilians.[32] Since then, Hezbollah has followed typical strategic doctrine of escalation and deterrence.[32]

Hezbollah guerrillas stand by a Katyusha rocket in 1998.

The number of Hezbollah attacks increased substantially through the 1990s.

Hezbollah parade following the end of Israeli occupation.

Fighting briefly lulled after the 1996 conflict as Hezbollah recovered from the fighting, but the movement's logistics were "resilient," and the group dramatically escalated the level of violence thereafter.[58] While Hezbollah performed 100 attacks from 1985–1989 and 1,030 attacks in the six-year period from 1990 to 1995, it launched 4,928 attacks from 1996–2000,[59] including at least 50 attacks per month for three years[58] and over 1500 attacks in 1999 alone.[35][lower-alpha 11] After abandoning the tactic of frontal assaults on SLA and IDF outposts around 1987, Hezbollah resumed the practice a decade later with radically changed tactics. On 18 September 1997, Hezbollah attacked 25 outposts simultaneously and used ATGM teams to target reinforcements.[35] By the end of the occupation, Hezbollah was using heavy weapons and engaging in hours-long firefights with the enemy.[35] In October 1998, Hezbollah first deployed an explosively formed penetrator, a sophisticated and powerful IED that can penetrate almost any armor.[60] Hezbollah considers 1998, 1999, and 2000 to be their most successful years of insurgency, and in 1997 and 1998 combined Israeli and SLA casualties exceeded those of Hezbollah.[33] A research paper by analyst Iver Gabrielson argues that by the late 1990s, Hezbollah had become "tactically proficient" organization.[35] By identifying and targeting Israel's weak point, casualties, Hezbollah was able to win a war of attrition.[33] Amid escalating violence, poor morale, and intense political pressure at home, the war in Lebanon became too much for Israel. On 6:48 am of May 24, 2000, the IDF departed southern Lebanon for the first time in 18 years, and the SLA militia immediately collapsed.[33] Although Hassan Nasrallah had once promised to "slaughter" SLA members in their beds, there were no revenge killings.[35]

From 2000 to 2006, Hezbollah made a strategic choice to build a massive amount of military infrastructure in southern Lebanon south of the Litani river. In addition, Hezbollah enormously increased the quantity and the quality of their weaponry, acquiring advanced anti-tank missiles like the AT-14 Kornet. Starting just before the Israeli withdrawal, Hezbollah built significant military infrastructure in southern Lebanon.[23][lower-alpha 12] The IDF and independent observers knew that Hezbollah had built some infrastructure, but the scale was unanticipated.[23] The interwar period was marked by limited, sporadic fighting and few casualties on either side: between 2001 and 2004, Hezbollah launched just 16 attacks.[59] Hezbollah continued to study Israel and adopt to lessons learned, and the group spent a large amount of effort gathering information about Israel.[35] Changing its strategy of high mobility, Hezbollah instead became relatively fixed with pre-built bunkers, stockpiles, and fighting positions.[35] During this time, Hezbollah also acquired its first UAVs from Iran and sent militants to Iraq to train "Special Groups" to wage guerrilla warfare against the Americans.

A map of Hezbollah's defensive system in southern Lebanon.

In 2006, Hezbollah ambushed an Israeli border patrol inside Israel, killing eight Israeli soldiers and kidnapping two Israeli soldiers in an unsuccessful attempt to bargain for the release of incarcerated Hezbollah prisoners. Israel responded with overwhelming force, sparking the 34-day 2006 Lebanon War. During the course of the war, Hezbollah was described as "an organized, well-trained and well-equipped force" and "fighting hard."[61] In 2006 Hezbollah pursued an asymmetric, integrated standoff fires and area-denial strategy.[62] Hezbollah launched rockets onto populated Israeli areas and cities while using light infantry, bunkers, and anti-tank teams to defend southern Lebanon and attack the IDF. The group focused on small self-sufficient units, based in villages, providing home-front attrition with a somewhat effective command-and-control structure and low mobility.[56] In 2006, Hezbollah used a "Complex Web Defense." "This was characterized by mutually supporting defensive positions, interconnected with resilient, redundant communications, and sustained by stockpiled and hidden supplies. Fighters were often irregulars, but were well trained and very well equipped with top-of-the-line antitank and antipersonnel weapons. They were capable of executing flexible, prearranged plans and demonstrated agility at the lower tactical levels."[63] Hezbollah was willing to fight from villages and other civilian areas, which while a violation of the laws of war, was tactically advantageous.[30] The terrain and climate negated Israel's advantages in armored and maneuver warfare and tested infantry skills, where Hezbollah was strongest.[30] Hezbollah's tactics, including light infantry, anti-tank weapons, and rocket fire onto Israel, were continuations of 1990s-era tactics.[35]

The group had become more conventional, transitioning from a guerrilla organization into a hybrid actor with the ability to absorb damage and sustain high-intensity fighting over time.[35] The war ended by United Nations Security Council Resolution 1701 and an inconclusive outcome; neither side achieved their objectives.[45] Hezbollah claimed a "divine victory".[64] Hezbollah identified their main shortcoming in the 2006 war as their lack of air defenses, which they considered a "serious problem" and their main task to address.[23] Other identified weaknesses were marksmanship, small unit tactics, and the exposure of battlefield tactics, weapons depots, and fighting positions.[23] Furthermore, the UN Security Council resolution that ended the war forced Hezbollah to abandon its dense network of underground bunkers and fortifications and cede southern Lebanon to the Lebanese Armed Forces UN peacekeepers, known as UNIFIL.[23] Although the group's weaponry, operational security, and intelligence improved much between 2000 and 2006, there was arguably little improvement in the group's force structure or tactical ability.[35] There is no academic consensus on whether the war was strategically beneficial for Hezbollah.[35] The group's popularity in the Shia community, Lebanon as a whole, and the Middle East surged following the war.[56]

Hezbollah fighters on parade after the 2006 war.

Following the 2006 war, Hezbollah undertook an after action review of their weaponry and tactics.[23] Hezbollah rated the performance of their bunkers and camouflaged firing positions in fenced off "security pockets" in rural areas as worthwhile.[23] Hezbollah's review found that the group's "village guard" reservists, almost entirely veterans from the insurgency, had performed well.[23] Hezbollah fighters reportedly knew their local terrain intimately, understood their mission, and had absolute confidence in victory.[23] The Islamic Revolutionary Guard Corps' Quds Force (IRGC-QF) also wrote a lessons-learned review for Hezbollah, who reportedly adopted a number of its recommendations.[65][lower-alpha 13] Following the war, the IRGC-QF increased transfers of materiel, funding, training, and intelligence sharing.[66] There has been virtually no rocket fire onto northern Israel following the war, and Hezbollah disavows the few attacks that do happen.[45]

Since the 2006 war, Hezbollah has continued to substantially grow its weapons arsenal, manpower, and intelligence appatus. The group is widely used as the textbook definition of a hybrid actor, with conventional and unconventional warfare capabilities.[67][68] As a hybrid actor, Hezbollah's main weakness is its need to maintain civilian support to hide among the population while causing great harm to civilians if war breaks out. This causes Hezbollah to have to justify its actions to maintain public support and to avoid war.[69] Since the start of the civil war in Syria in 2011, Hezbollah has deployed a substantial amount of its manpower in the country, where the group engages in counterinsurgency and large scale operations. Most sources agree that this deployment has harmed Hezbollah's morale and public image while improving the organization's ability to conduct large-scale maneuvers and interoperability with allied forces. As of 2017, Hezbollah's military operations include thousands of fighters deployed to Syria to back the Assad government, about 250-500 fighters in Iraq training the Shiite-dominated Popular Mobilization Forces, and about 50 fighters in Yemen on a covert train-and-support mission for Houthi rebels.[70][71]

Over the course of 35 years, Hezbollah evolved from "a relatively small group of revolution-oriented conspirators" into "arguably the most powerful and popular organization in Lebanon."[32] The group changed from "a small cadre of militants" into a semi-military organization and a regional military actor.[56] Professor Augustus Richard Norton says that the core reasons for Hezbollah's long-term success were its resistance to Israeli occupation, institution-building, anti-western worldview, piety, pragmatism, and Iranian support.[32] Scholar Iver Gabrielson says the main reasons for Hezbollah's victory were its "pragmatism, social services and political participation."[33] Andrew Exum says that Hezbollah won by combining kinetic (violent) and non-kinetic lines of operation.[55] Over its history, the organization has performed many different kinds of warfare, including insurgency, sub-state conflict, hybrid warfare, and counter-insurgency.[35]

Qualitatively, Hezbollah is described as ruthless and arrogant, willing to use physical force to effect political change, and prioritizing hard power.[47] The party's strategy combines extremist rhetoric, tactical caution, and long-term risk taking.[51] Arguably, its core source of strength is its effective, sustained violence.[72][47] A number of sources say that Hezbollah's fighting strength is the foundation on which its political power, public support, and legitimacy lie. As one Hezbollah fighter said in 2017, "Either you are strong or you are weak, and if you are weak you get eaten. Now, Hezbollah is strong."[73]

Hezbollah members on a march.

In 1984, training was centered in the Sheikh Abdullah Barracks in Lebanon, with fighters sleeping in the barracks at night and leaving during the day in fear of air raids.[95] Following Israeli air raids on their training camps in the Bekaa valley in 1994, Hezbollah training more furtively in the Bekaa Valley with small tents and foxholes. The end of the 2006 war brought large manpower demands that required the group to expand its training facilities, and since then Hezbollah has had fairly large and built-up training camps.[79][13]

In the early 1980s, some Hezbollah fighters travelled to Iran and fought against the Iraqi Army in the Iran–Iraq War.[34] In the 1990s, the IRGC trained Hezbollah in infiltration techniques, explosives, and intelligence operations to promote advanced guerrilla warfare.[76] Top leaders, including Hassan Nasrallah, reportedly trained for several months in North Korea in the late 1980s.[96]

The number of full-time fighters and Iranian liaison officers apparently decreased in the early 2000s as the group wound down from the peak of the insurgency.[97] Direct Iranian-led training camps in Lebanon apparently ended around 2006[97] and travel to Iran for training was wound-down in the 2010s as it was replaced by combat in Syria.[56] Training in Iran provides the opportunity to train on larger-scale weapons than would be practical in Lebanon.[56]

Since 2006 and especially the group's involvement in the Syrian Civil War, Hezbollah has engaged in a massive manpower buildup. Some observers suggest it has decreased the organization's quality,[23] though Hezbollah fighters claim this is not the case.[23] Since 2006, the group has built training camps in Lebanon focusing on urban warfare.[82] Experienced fighters rotate from the front lines to instructor roles in training camps.[76] Agents from Iran's Ministry of Intelligence train Hezbollah as well, and North Korean instructors possibly participated in the 1980s and 1990s.[98] Training by the IRGC is described as serious and in-depth.[99] The Syrian regime was involved in Hezbollah's training for decades, but since the start of the Syrian Civil War the pattern has reversed, and Hezbollah now "provides training, advice and extensive logistical support to the Government of Syria."[100] In response to the high manpower demands of the Syrian Civil War, the group has reportedly shortened its background check and training regimens for new recruits, though the quality remains high.[56]

Recruitment is a slow process taking months to years, with recruiters looking for pious, conservative, and disciplined individuals.[31] Hezbollah's "internal security wing" cooperates with Iran's intelligence services to vet select recruits for more advanced training, with rigorous family background inspection.[76] Promotion within the ranks comes from patient talent spotting of trusted and gifted individuals.[76] Fighters are generally older and well-educated;[35] one study found that Hezbollah combatants who were killed in action had more education than civilian peers.[101] To an unusual degree for a non-state actor, Hezbollah members are specialized in fields like IEDs, artillery, engineering, and communications.[26]

Hezbollah's manpower includes full-time fighters and loosely affiliated reservists, who may only occasionally fight for Hezbollah or be affiliated with other political parties.[30] Hezbollah has no formal membership rolls.

Assessment of the group's reservists, also known as "village guards" or part-time fighters, varies widely. These men have employment outside Hezbollah and only take up arms for major military engagements[31] or as part of a two-week per year "duty".[56] Israeli sources call the group's reservists "relatively unskilled,"[86] while Hezbollah describes them as just as combat effective as full-time fighters.[23] One American think tank says they performed exceptionally in the 2006 war,[30] while another calls them "less capable" than full-time fighters.[56] The training of Hezbollah reservists is similarly unclear. Andrew Exum says that they did not seem to have been trained by Iran,[31] and some may have been former militia members,[30] while analyst Nadav Pollak says that they were recruited from the al-Mahdi Scouts[56] and multiple sources say that almost all were former militia members.[31][18] Some people described as Hezbollah reservists apparently spontaneously took up arms or were not formally affiliated with the party.[30] Hezbollah reservists have been rotated through Syria on short-term deployments, along with the party's regular fighters and commanders.[56]

Hezbollah was founded as a light infantry force and it remains primarily composed of light infantry to this day.[122]

A Hezbollah bunker with a DShK heavy machine gun.

In 2006, Jane's assessed Hezbollah's guerrilla forces "to be amongst the most dedicated, motivated and highly trained" in the world.[84] Voice of America reports that "Hezbollah fighters have been schooled from a young age to submit to strict military discipline and are nurtured in a culture of martyrdom, believing that God sanctions their struggles," adding that, "their military and ideological training is rigorous."[123] Hezbollah forces in 2006 were "well trained, well led and suitably equipped" and conducted defense in depth.[18] Reconnaissance work, planning, and intelligence gathering "meticulously" underpin Hezbollah's combat missions.[76] Hezbollah's operations were marked by tactical agility, use of cover, advanced weapons, survival, complex operations, advanced training, and effective command and control.[124] For larger operations, Hezbollah has sometimes demonstrated "task organized" forces, including an assault team, a breach element, and support team.[30] They're not fighting like we thought they would," one soldier said. "They're fighting harder. They're good on their own ground."[30] Hezbollah cells were flexible and able to rapidly combine into larger forces or operate independently when cut off.[114] Reportedly, southern Lebanon was divided up into 75 self-sustaining Hezbollah zones connected together as a network.[125] When the IDF massed firepower and used combined arms, however, it was able to comfortably defeat Hezbollah even in their strongpoints.[30] The 2018 assessment by Israeli military leadership is that the organization has a 45,000 man standing army with many battle-tested fighters.[126]

In 2006, Hezbollah fighters "often participated in extended direct firefights with the IDF."[18] Hezbollah would generally wait for Israel to enter a village before beginning combat, rather than engage in open territory.[86] Fighters mostly wore Hezbollah uniforms, while a small number wore civilian clothes or IDF uniforms in combat.[18][127] Hezbollah fighters in the 1990s and 2000s mostly wore M81 woodland and olive drab camo, with fighters recently also wearing multicam.[128] Hezbollah fighters conducted close-range, direct firefights with the IDF, and launched counterattacks with up to a platoon of men.[18] Soldiers displayed tenacity and planned and executed complex ambushes.[75] Close familiarity with their area of operations, widespread civilian support, and strong communication networks bolstered the fighters.[86] Fighters rely on "superior mobility, fighting morale, and popular support" to counter Israel's technological advancement.[105] Israeli Brigadier General Gal Hirsch described house-to-house fighting with Hezbollah as "a full-contact operation. I mean direct fighting between our soldiers face to face."[74] In 2006, Hezbollah fighters were overwhelmingly clad in uniforms, and often had equipment used by state militaries like body armor, dog tags, and helmets.[127] Hezbollah is strongest when defending its home territory of southern Lebanon,[86] and had a "strategic advantage" here.[129] One of Hezbollah's strongest attributes is its skill in cover and camouflage, which is sometimes described as good as Israel.[45]

Some Hezbollah units attempted to make incursions into Israel in 2006, but Israel repulsed all of the attacks.[86] Many commentators expect Hezbollah to make a substantive effort to capture Israeli territory in a future war.[130]

During a speech on october 18, 2021, Hezbollah leader Hassan Nasrallah publicly claimed that the military structure of Hezbollah includes 100,000 trained Lebanese fighters.

A Hezbollah Toophan ATGM in 2006.

Hezbollah's anti-armor capabilities consist of ATGM teams with 5 or 6 fighters.[21] The typical team had two highly trained operators, within Hezbollah called "tank snipers" or "Mirkava fighters," and two or three porters to move the heavy missiles.[30][131] Fighters are trained in anti-tank weapons, ambushes, and camouflage.[78] Hezbollah apparently stole a combat simulator from Fouad Shehab Command and Staff College and uses it to train anti-tank teams.[78] Reportedly, in the 2006 war, Hezbollah's most skilled anti-tank teams were held back in reserve in expectation of a major Israeli attack and did not see combat.[131] One of Hezbollah's common tactics was to wait under cover for an Israeli vehicle to pass by, then attack from the rear, where the armor is weakest.[18] Fighters swarm Israeli tanks with dozens of cheap ATGMs to strip off reactive armor and active protection systems, then use a powerful missile like a Kornet, Toophan or RPG-29 to destroy the tank.[132][21] ATGM teams also target individual soldiers and occupied buildings with missiles.[85] They operate alongside infantry as part of combined arms.[86] To avoid airstrikes and counter-fire, the teams rely heavily on mobility.[86] Since 2006, Hezbollah seems to have made more of an effort to use recoilless rifles and cheap ATGMs in their swarming mix.[6]

In 2006, about 12–15% of Hezbollah's forces were part of ATGM teams.[21] They successfully integrated ATGM teams with indirect fire, which gave the group the ability to reposition their forces and conduct more efficient ambushes.[18] ATGM teams could engage Israel at a range of several kilometers, giving Hezbollah standoff capability.[133] Anti-tank tactics had some success and were the main source of Israeli casualties, accounting for at least 50 deaths.[23] In addition to using their weapons with skill, Hezbollah also used a wide range of anti-tank missiles, which posed problems for the IDF.[30]

The New York Times reports that 20% of ATGM attacks on tanks caused casualties or penetrated armor,[85] but Israeli military reports suggest this number was higher, at 45%.[105] Hezbollah fought battles of maneuver and attacked fortified Israeli positions.[18] Hezbollah's strategic maneuvering capability is a main weakness, but the party's skills in tactical maneuvering are "proficient".[30] Although the fighters were highly mobile within their areas of operation, strategically Hezbollah's defensive position was basically static.[30] The IAF's overwhelming firepower and communication problems meant that retreating or attacking were rarely possible.[30] Instead of retreating, Hezbollah members took off their uniforms and disappeared into the civilian population.[30] Hezbollah conducted ambushes that separated Israeli infantry from armor units and inflicted more casualties per Arab fighter than any of Israel's previous opponents.[18] However, ATGM teams had poor night-fighting capacity and were slow to regroup when retreating.[21]

In 2015 or 2016, Syria reportedly provided Hezbollah 75 T-55 and T-72 tanks to use in the country, as well as other armored vehicles.[134][135] These forces were confirmed in a 2016 parade held in al-Qusair, Syria.[136][137] Hezbollah also operates T-55 tanks and artillery loaned out from SAA[138] and has an unidentified amount of BMP-1 infantry fighting vehicles. Hezbollah does not deploy armor in Lebanon against Israel, because the vehicles are dated and the party cannot counter Israel's absolute air superiority.[74]

Hezbollah has trained special forces fighters since the 1990s, which are today part of the Radwan Unit. They have particular experience in raids and small unit tactics[56] and according to Hezbollah perform "ambushes, assassinations, or operations that require deep infiltration."[35] They are secretive but regarded as "surprisingly professional and able"[74] and "tough guerillas who excel in the art of operating clandestinely."[96] According to Israeli Lieutenant Colonel Roni Amir, "when an Israeli SOF team encountered [Hezbollah SOF] on one occasion during a firefight, the Israeli team members thought at first that they had somehow become commingled with a separate detachment of Israeli SEALs."[74] Training lasts 90 days.[23] They are described as "very disciplined" full-time fighters, and in the 1990s were based in Beirut.[35] Hezbollah's SOF include Unit 1800, which provides training to militant groups in the Palestinian territories, Unit 910, which carries out "external operations" in Israel and abroad, and Unit 3800, which supports Iraqi Shiite militant groups, particularly in constructing IEDs.[139][82] Hezbollah SF participated in the Battle of Bint Jbeil[140] and commanded the Battle of al-Qusayr.[141] Hezbollah SF been heavily involved in the Syria theater.[56]

A Hezbollah bunker in southern Lebanon with a concrete block protecting the door.

Israel gave the name "nature reserves" to Hezbollah's vast network of underground bunkers, barracks, caches and firing positions located in sparsely inhabited rural terrain in southern Lebanon. Hezbollah combat engineers have built defensive firing positions and well-hidden strongpoints throughout southern Lebanon since 2000. Hezbollah bunkers are well-defended, with blast doors and security cameras, and are deeply buried to stymie Israeli airstrikes.[18] These fortifications are also well camouflaged, with launch sites particularly challenging to locate.[74][86]

In some atypical cases, bunkers were discovered buried hundreds of feet underground, with several feet of concrete protection and enough food and living space to last for weeks without resupply.[86] Some of Hezbollah's tunnels have been thousands of meters long. Israeli sources say that North Korean instructors traveled to Lebanon in 2004 and oversaw construction of Hezbollah's underground infrastructure.[18] In 2013, a United States federal court found that North Korea gave Hezbollah "advanced weapons, expert advice and construction assistance" in building "a massive network of underground military installations, tunnels, bunkers, depots and storage facilities in southern Lebanon."[153]

Captured Hezbollah 122 mm BM-21 Grad rocket.

Because Hezbollah's fortified sites and underground facilities are resistant to airstrikes, they cannot be neutralized without a ground response.[86] In turn, Hezbollah can use its weapons caches and strongpoints to challenge Israeli ground forces. In 2006, distributed caches of necessities gave fighters sufficient provisions to fight despite IAF interdiction of resupplies.[86][154] The group had about 500–600 weapons caches in 2006.[18][86][30] Some Hezbollah units continued to fire rockets onto Israel even from behind IDF lines.[30] Following the 2006 war, Hezbollah was forced to abandon its bunkers and "nature reserves" south of the Litani River.[23] The 2006 war caused a change in the region of Hezbollah's military infrastructure; prior to the war, Hezbollah was concentrated south of the Litani River, while following the war Hezbollah's defensive apparatus is mostly north of it.[6]

Several tunnels crossing from Lebanese territory to northern Israel were found by IDF in December 2018 as a result of Operation Northern Shield and UNIFIL subsequently confirmed their existence.[155]

An underground Katyusha rocket launcher in southern Lebanon, camouflaged by dense brush.

Hezbollah has hundreds of launch sites for its rockets throughout southern Lebanon,[18] an increase from 200 to 300 launch sites in 2006.[74] Spare rockets and equipment are stored in civilian houses and bunkers.[85] Most rockets are moved from storage to firing position by one team, and fired by another.[74] Hezbollah rocket teams were given giving simple mission-type instructions to maintain rocket fire on Israel and often operated independently for the duration of the 2006 war.[30][lower-alpha 16] Tactically, Hezbollah managed to fire Katyusha rockets as regularly as they had planned, and their rocket teams were determined and had good logistics. However, the rockets failed to have a coercive strategic effect on Israel, and did not end the war.[30]

Hezbollah sappers have built large numbers of presurveyed and prepared launching positions for rockets to use in war.[74] A skeleton crew quickly moves rockets into position and fires them singly or in bulk with minimal logistical support.[86] Some rockets are hidden underground with pneumatic lifts to raise and fire them or launched from trucks.[18] Although Israel can target the launch sites within minutes of a launch, the IDF in 2006 could generally not destroy launch sites before use and therefore could not stop the rain of rocket attacks.[74][86][154][lower-alpha 17]

Hezbollah members commonly use low-tech walkie-talkies.

Hezbollah runs an "excellent, diverse, and hard-to-target"[18] military communications network, which Hezbollah leader Hassan Nasrallah called "the group's most important weapon" in 2008.[156]

Hezbollah field telephones.

Hezbollah's wired communications network originally spanned from Beirut through the Beqaa Valley to the Israel-Lebanon border, but since 2006 has been expanded to cover most of Hezbollah's areas of operation, except for parts in north Lebanon.[156][157] Composed mostly of fibre-optic cables run alongside existing civilian Lebanese telecommunications infrastructure, the network also contains some copper wires and standalone lines.[156] "Almost every facility and building" owned by Hezbollah connects to this network.[156] In the 2006 war with Israel, the network resisted Israeli attempts to jam it,[156] and Hezbollah maintained communications throughout the conflict.[18]

Hezbollah fighters mostly communicated using codewords on low-tech walkie-talkies, while command posts and bunkers were linked by the group's fiber optic network.[23] Hezbollah relies heavily on cell phones to conduct its operations, both using existing Lebanese carriers and operating its own cellular networks. Limited numbers of high-ranking and critical personnel have satellite phones as a redundant measure.[156] Hezbollah's communications network has greatly increased since 2006, and fiber optic cables links the homes of top commanders to bunkers and headquarters.[23] Normal personnel have access only to the insecure copper wire network, which is supposed to be used only for casual conversations.[23]

Hezbollah has a number of minefields, which are sometimes systemically integrated with firing positions to create ambushes and sometimes used as an area-denial weapon.[18][127] Hezbollah also uses mines heavily to protect strongpoints from Israeli raids.[158] Members store spare mines in civilian homes and warehouses.[86] Hezbollah has mined most of the major roads in southern Lebanon in anticipation of an Israeli assault, while Israel tries to avoid these mines by taking backroads.[30][86] Although Hezbollah had a number of minefields, the IDF in 2006 was easily able to bypass all of them, and the party was rarely able to combine minefields into integrated barrier defenses.[127] Landmines known to be used by Hezbollah include the M15 mine and the M18 Claymore mine.[159]

Improvised explosive devices, or IEDs, are also a common element in Hezbollah's repertoire. In the past, Hezbollah members have buried hundreds of kilos of explosives in large pits to take out Israeli tanks.[86]

Hezbollah weaponry captured in the 2006 war. Most of Hezbollah's guns are AK-47 rifles.

Hezbollah fighters are allowed to choose between the M16 and AK-47 rifles;[168] most fighters choose AK-47s.[78][30] Some fighters also carry M4 rifles.[30] As an unconventional fighting force operating in a region where many different weapons have proliferated, it is not uncommon for Hezbollah fighters to use other small arms, such as RPK machine guns[183] and FN MAG machine guns.[184] The party owns vast quantities of firearms; in 2006, when Hezbollah had about 3000 fighters, IDF intelligence estimated that Hezbollah had at least hundreds of thousands of rifles.[131] Hezbollah agents have been repeatedly arrested in the United States for schemes to procure hundreds, thousands,[185] or tens of thousands[186] of M4 assault rifles. In addition, Hezbollah members have been arrested for trying to buy M200 sniper rifles and thousands of Glock handguns in the United States.[187] In general, the group does not suffer from any significant shortages of infantry equipment.[56]

In the 1980s, Hezbollah fighters were equipped with the weapons of the Lebanese Civil War: the AK-47, M16, H&K G3, and FN FAL rifles.[188][189][190][191]

106mm munitions for an M40 recoilless rifle.

In general, Hezbollah has the most advanced and numerous anti-tank weaponry of any non-state actor, while having less advanced weapons than a normal nation state. Hezbollah is generally described as having relatively advanced anti-tank missiles and of using them with skill. The party's anti-tank weaponry is one of their defining attributes.[30] Hezbollah's anti-tank weapons are among the most well-documented of their weaponry, but there is still disagreement over precisely which weapons are in their possession.

Hezbollah reportedly used 500 to over one thousand ATGMs in the 2006 war[205] and has thousands in total.[206] According to an American think tank, Hezbollah used its ATGMs with "tactical skill" and few technical errors.[205] Hezbollah's use of anti-tank weaponry is often considered to be very successful, with the group using anti-tank weapons to "swarm" Israeli tanks, target massed infantry, and target buildings.[205] Most Israeli casualties in the 2006 war were caused by anti-tank weapons. In addition to the quantities listed above, Hezbollah has received many unreported weapons shipments from Iran and Syria.[204]

Thousands of 106 mm M40 rounds captured by the IDF.

In addition, Hezbollah captured a single working Israeli Spike-MR "Gill" ATGM and launcher in the 2006 war.[207]

A Hezbollah ZU-23-2 anti-aircraft gun.

The group's anti-aircraft guns are obsolete by decades and wholly ineffective against modern Israeli helicopters, so they are instead deployed as ground-attack artillery against Israel[35] and insurgents in Syria.[136] In terms of skill, Hezbollah's use of MANPADS in 2006 was less successful than Iraqi insurgents operating around the same time with similar equipment.[35]

During 18 years of insurgency, Hezbollah shot down only one Israeli helicopter.[35] Israel continued to easily avoided Hezbollah's air defenses during the 2006 war. Drones and strike fighters flew at altitudes of 9,000 feet or above to keep out of range of Hezbollah's missiles, while rescue helicopters and close-air support avoided fire by flying nap-of-the-earth.[74] Hezbollah only shot down one CH-53 transport helicopter,[215] apparently with an anti-tank missile, which was considered very light losses for the IDF.[74]

If Hezbollah has obtained SA-16, or especially SA-18 and SA-24 MANPADS, this would be a major hazard for the IDF.[23] Hezbollah is believed to have pressured Iran for advanced Russian SAM systems since 2006.[66] One study says that if Hezbollah has acquired the SA-8 system, this would pose a greater threat to Israeli helicopters and UAVs, but not to Israel's advanced F-16 and F-15 fighters.

Hezbollah operates with unusual secrecy for a fighting force, so many claims about their weapon systems can not be confirmed. In 1994, Iran's IRGC purchased Stinger missiles from the Afghan mujahideen. Iran transferred these to a Hezbollah subsidiary in Lebanon, but they were defective, so they were likely returned to seller. Iran attempted to purchase 6–10 more Stingers from other Afghan outfits, including the Northern Alliance, but it is not known whether they were successful.[221]

There is great uncertainty regarding the many variations and names of Iran and Syria's rocket artillery systems, as well as which systems have been transferred to Hezbollah.[227] A number of Hezbollah rockets contain cluster munitions,[226] though Hezbollah denies this.[226] Because rockets may have interchangeable warheads, exact weight and range can vary slightly.[227]

A Hezbollah Falaq-1 or Fajr-3 rocket captured by the IDF in 2006.

Hezbollah BM-21 Grad "Katyusha" rocket launcher.

Most of Hezbollah's rockets are short range Katyusha rockets,[247] which refers not to a specific model but is a general term for short-range unguided rockets fired in large quantities from trucks.[228] The term "Katyusha" is usually used to refer to 122 mm BM-21 rockets, and sometimes includes BM-27 Uragan and Fajr-3 rockets as well. and In addition to their Katyushas, Hezbollah has "thousands" of medium-range rockets like the Fajr-3 and Fajr-5 and "hundreds" of long-range rockets.[5] Although Hezbollah's long range rockets can be based farther from the border and threaten more of Israel, they also require large truck-based Transporter erector launchers that are very vulnerable to air strikes.[131] Hezbollah's long range rockets were top priority targets for the IAF in the 2006 war[131] and the IAF destroyed 18 of 19 to 21 of Hezbollah's Zelzal launchers, and Hezbollah never used the rocket during the war.[131] Similarly, the group lost over half of their medium-range Fajr-3 and Fajr-5 rockets in the first hour of the war.[74] Considering that Hezbollah invested enormous effort in acquiring these rockets, their almost total destruction in the war represents a major failure.[30] Hezbollah has since reportedly buried their rockets in rough mountain regions of Lebanon farther from the Israeli border, which could complicate IAF efforts to find and destroy them.[28] Hezbollah mostly fires BM-21 rockets individually, but sometimes fires them in groups.[53] There is some evidence that Hezbollah indigenously builds IRAM rockets, combining the rocket of a 107 mm munition with the warhead of a Falaq-1 rocket, which are informally called "Volcano" rockets.[242] These are particularly used in Syria.[56] Many Hezbollah rockets are stored underground in a "ready-to-fire" mode.[13] There is no consensus on how many rockets Hezbollah has in total, and while estimates of around 150,000 are commonly repeated, Jane's calls this propaganda.[13] There is agreement that Hezbollah's rocket force is extremely large and has expanded substantially in the last decade.[13]

In 2009 the IDF interdicted 2,124 107 mm Fajr-1 artillery rockets on a cargo ship bound for Hezbollah.[248]

Hezbollah's rocket force is a strategic, not tactical weapon, intended not to achieve battlefield effects but to harm Israel's sense of security and quality-of-life.[33] The main impact is not the physical destruction but the way that rocket fire affect the lives of Israel's population and cause people to flee northern Israel.[23] As one observer dryly noted in the 1990s, "When a Katyusha falls on somebody's house, it is hard to tell them this is going well."[35] In this sense, it functions as a deterrent,[86][226] and is Hezbollah's main means of leveraging a favorable outcome to a war against Israel.[136] Hezbollah's rocket strategy of using rockets against Israel is broadly similar to Hamas's strategy. Hezbollah's rocket arsenal is of higher quality and quantity than Hamas, and Hezbollah's daily rate of fire is about four times higher.[28] Hezbollah's rocket stock grew tenfold between 2006 and 2015.[249] In a future war with Israel, estimates for the number of rockets fired per day range from 500[35] to over 1000, with a higher opening blow in the initial stages of the conflict.[250] Estimates of Hezbollah's overall number of rockets vary, but high end estimates are around 150,000 thousand rockets. In 2002, the party had about 8,000 to 9,000 rockets,[235] and in 2006, Western intelligence sources believed Hezbollah had about 12,000 rockets,[66] a number also claimed by Hezbollah leader Hassan Nasrallah. Hezbollah had about 12-13,000 rockets on the eve of the 2006 war, of which 11,000 were supplied via Iran[251] and about 100 were from the medium-range Fajr series.[97] In 2018, the deputy defense minister, Eliyahu Ben Dahan, estimated the organization had more than 120,000 missiles.[126]

There is no evidence the Zelzal-3, a minor upgrade of the Zelzal-2 unguided artillery rocket, has been acquired by Hezbollah.[252][lower-alpha 24] Similarly, despite speculation to the contrary, there is no evidence that the Fateh-313 missile has been transferred to Hezbollah.[253] There is no evidence Hezbollah has been supplied with more Zelzal missiles since the 2006 war.[66] Some sources say Hezbollah has acquired 300 mm BM-30 "Smerch" rockets.[67]

Since missiles, unlike rockets, are guided, they represent a major increase in warfighting capacity. While unguided rockets are terror weapons aimed at large civilian areas to inflict fear, missiles can be targeted towards specific infrastructure or locations. Analysts say that in a war, Hezbollah would likely use their missiles to target Israeli military targets, critical infrastructure, and air ports.[103] Hezbollah had no guided missiles during the 2006 war.[228] Hezbollah has reportedly used ballistic missiles in combat in Yemen against Saudi Arabia, which has allowed them to improve and test the missiles' payload and guidance systems.[13]

Whether or not Hezbollah has acquired Scud missiles is a subject of dispute, as is the types of the Scuds supplied, the dates the missiles were purportedly delivered, and the quantity, and there is no consensus on whether missiles were delivered. The London Times reported in 2011 that Hezbollah received 10 Scud missiles from Syria in two batches.[102] Hiding a Scud missile would be hard,[23] and would probably require a large underground complex. Since Scud missiles are much large and more complicated than M600 missiles, their only real use would be as psychological weapons to threaten all of Israel or to attack Israel's nuclear facilities in Dimona.[23] Still, some sources suggest Hezbollah has acquired a very small amount of Scud missiles.[72] Journalist Robert Fisk and UNIFIL say that Hezbollah has not received Scuds.[161]

Nasrallah has suggested in statements that Hezbollah has Iranian-made M600 missiles,[23] and most analysts and the IDF believe that Hezbollah has acquired at least some M600 missiles. Hezbollah regularly claims to have weapons that will "surprise" its enemies,[28]

Hezbollah has a relatively limited amount of mortars and artillery weapons. The party used mortars to shell IDF and SLA outposts during the insurgency period, and captured some artillery pieces during the Lebanese Civil War and the collapse of the SLA militia. The party has also acquired and used more artillery pieces in the ongoing Syrian Civil War. The group's mortars, like most of the rest of their equipment, are supplied by Iran and Syria.[97]

Between 1995 and 2002, The Iranian Revolutionary Guards claim to have equipped Hezbollah with 400 short and medium range artillery pieces.[211] The Israeli think tank MEMRI makes a different estimate, saying that Hezbollah received four hundred short- and medium-range artillery pieces between 1992 and 2005.[99]

Assessment of Hezbollah's indirect fires ability varies. Some studies say that indirect fire is a Hezbollah weakness,[18] while others say that Hezbollah's indirect fires deserve "high marks"[143] and the LA Times claims that Hezbollah has "well-trained artillerymen."[270] The party's fire discipline is reportedly much better than that of Palestinian groups.[114] A US Army publication explains this disagreement by saying that although some indirect fire support components like mortar marksmanship were strong, Hezbollah was rarely able to mass indirect fire, and overall Hezbollah was "far short of contemporary Western standards."[127] Iran has transferred to Hezbollah some old artillery fire-control, targeting, and damage assessment systems.[271] Hezbollah artillery participated in the battle of Salma, the battle of Zabadani, and the Battle of al-Qusayr along with other groups' artillery.[56]

Although there are reports of Hezbollah sporadically capturing tanks and armored personnel carriers in the 1980s and 1990s,[23][31][274] Hezbollah did not start to seriously operate armored vehicles until its involvement in the Syrian Civil War. Since Hezbollah was operating against non-state actors and had air superiority, using heavy weapons and vehicles made tactical sense. However, Hezbollah's armored vehicles are universally described as far inferior to the IDF's, and would not be useful in a war against Israel.

Hezbollah AT-3 Sagger missiles being transported in a civilian car.

A Kawasaki KDX 250 motorbike used by Hezbollah.

Hezbollah fighters and operatives use civilian vehicles systemically for day-to-day transport and combat.[86] Hezbollah's logistics teams transport arms and ammunition in pickup trucks, while individuals commonly use dirt bikes for off-road travel.[86] Once arriving at a battlefield, Hezbollah fighters generally discard their vehicles and fight on foot.[86] Israel has accused Hezbollah of using ambulances and Red Cross vehicles to move weaponry, which is a war crime.[86]

On 14 July 2006, Hezbollah forces fired a C-802 anti-ship missile at the Israeli corvette INS Hanit, killing four sailors and inflicting substantial damage. A second missile missed its target and destroyed a civilian merchant vessel.[lower-alpha 25] Sources disagree on whether the missile used was an OEM Chinese-made missile or an Iranian-made clone. Sources disagree on who was responsible for firing the missiles, with Hezbollah, the Syrian Army, or the Islamic Revolutionary Guard Corps being implicated.[278] Iran denied involvement in the incident[279][lower-alpha 26] while others disagree.[97] The same year, Israel destroyed ten Lebanese Armed Forces radar stations along the coast, possibly because Hezbollah gained access to them to launch anti-ship missiles.[74] In a May 25, 2010 speech, Hassan Nasrallah promised to attack Israeli naval ships and Israeli-bound commercial shipping.[72] Some have speculated that Hezbollah has semi-submersibles, swimmer delivery vehicles,[13] or even submarines, though these are not confirmed.[281][282][31]

There are disputed reports that Hezbollah has acquired large, advanced Yakhont anti-ship missiles from Syria, by smuggling them into Lebanon in parts.[257]

Hezbollah established an amphibious warfare unit in the 1990s, which trains in Lebanon and Iran.[283] Little is known about it.

Remnants of shot-down Hezbollah UAV

Like many of its other weapons systems, Hezbollah's UAV capacity is more advanced than any other non-state actor, while being much less capable than a typical nation state. In particular, Hezbollah's UAV systems are much inferior in both quantity and capability to Israel's. Hezbollah operates both military drones, believed to be acquired from Iran, and improvised commercial off-the-shelf models.[288] There is substantial disagreement over what models and quantities of drones Hezbollah possesses.[289] Hezbollah has no manned aircraft.[290]

Hezbollah first acquired UAVs in 2002[291][292] and their first known use of a drone came on November 7, 2004. The party has continued to use UAV technology.[288] The organization used drones in the 2006 Lebanon War and lost several. Since 2014, Hezbollah drones have also been involved in reconnaissance over the porous Lebanese-Syrian border.[293] Hezbollah has demonstrated weaponized civilian drones, and claims to have first used them in September 2014.[294][295] In 2015 Hezbollah was using COTS quadrocopter UAVs to spot artillery fire in Syria.[288] Syria is the party's first intensive use of drones.[56]

A Hezbollah Ababil UAV

Estimates for Hezbollah's total number of drones range from more than 10[296] to "dozens"[297] to almost 200,[293][298] not counting commercial civilian drones. In 2006, the group claimed to have 50 trained drone pilots.[299] Hezbollah drones of disputed model, known as the Mirsad-1 and either an Abadil-2 or Mohajer-4 model, violated Israeli airspace in November 2004 and April 2005. Hezbollah operates Abidil-2 UAVs in several models, including communications, the Qasef-1 loitering munition, and strategic intelligence. The group does not have Abadil-2 drones for tactical surveillance. In 2014 or 2015, Hezbollah built a 2200-foot unpaved runway in the northern Bekaa Valley, probably to use for UAVs in Syria.[300] There is speculation that Hezbollah has acquired the Shahed 129 UAV.[301][302]

Hezbollah has also used manned paragliders or powered parachutes.[303][304][13] Little is known about this.

There is no evidence Hezbollah has acquired chemical, biological, or nuclear weapons. Hassan Nasrallah has spoken against WMDs and IDF sources say Hezbollah has not acquired chemical weapons. However, there has been much speculation and concern about Hezbollah's potential acquisition of chemical weapons, particularly given the state collapse in nearby Syria.[103] A 2013 article says that if Hezbollah acquired biological weapons from Syria, its existing UAVs would likely provide a viable delivery mechanism.[305] On the other hand, in 2008, the George Bush administration assessed that Hezbollah was possibly capable of carrying out a terror attack with chemical, biological or low-grade nuclear weapons.[185]

Hezbollah has a counterintelligence apparatus, composed of two organs: the "Amn al-Muddad" (encounter security) and Amn al-Hizb (party security).[306] The group's counterintelligence capability has improved over time.[312] The counterintelligence organization contains a "combat unit", which went active around 2004.[312]

Between 2000 and 2006, the group improved particularly in counter-signals intelligence, or removing Israeli electronic spying devices, and "turning" Israeli agents.[18]