1st Cavalry Division (United States)

The history of the 1st Cavalry Division began in 1921 after the army established a permanent cavalry division table of organization and equipment on 4 April 1921. It authorized a square division organization of 7,463 officers and men, organized as follows:

• Headquarters Element (34 men)
• Two Cavalry Brigades (2,803 men each)
• Field Artillery Battalion (790 men)
• Engineer Battalion (357 men)
• Division Quartermaster Trains Command (276 men)
• Special Troops Command (337 men)
• Ambulance Company (63 men)

1st Cavalry Division's Horse Cavalry Detachment charge during a ceremony at Fort Bliss, Texas, 2005.

On 20 August 1921, the War Department Adjutant General constituted the 1st and 2nd Cavalry Divisions to meet partial mobilization requirements, and authorized the establishment of the 1st Cavalry Division under the new TO&E on 31 August 1921. Since 1st Cavalry Division was to assemble from existing units, it was able to go active in September 1921, even though the subordinate units did not arrive completely until as late as 1922.

1st Cavalry Division was assigned to the VIII Corps Area, with its division headquarters and 2nd Brigade located at Fort Bliss, Texas, and the 1st Brigade at Camp Harry J. Jones in Douglas, Arizona. The headquarters facilities used by 1st Cavalry Division were those previously vacated by 8th United States Brigade when it was commanded by MG John J. Pershing in 1916, and the wartime 15th Cavalry Division, which had existed at Fort Bliss between 10 December 1917 and 12 May 1918.

The 1st Cavalry Division Band during an Operation Iraqi Freedom 2 Color Uncasing Ceremony at Fort Hood, Texas in 2005.

The 1st Cavalry Division assembled at Douglas, Arizona. The 1st, 7th, and 8th Cavalry Regiments had previously been assigned to the wartime 15th Cavalry Division until they were returned to the VIII Corps Area troop list on 12 May 1918. 1st Cavalry Regiment remained assigned until it was transferred to 1st Cavalry Division on 20 August 1921. The 7th, 8th, and 10th Cavalry Regiments were transferred on 13 September 1921, although the assignment of the 10th Cavalry Regiment to the 1st Cavalry Division was controversial because the transfer violated the Jim Crow laws. This controversy continued until 18 December 1922, when the 5th Cavalry Regiment, then on the VIII Corps Area Troop List, swapped places with the 10th Cavalry Regiment.

In 1923 the 1st Cavalry Division held division maneuvers for the first time, intending to hold them annually thereafter. However, financial constraints made that impossible. Only in 1927, through the generosity of a few ranchers who provided free land, was the division able to conduct such exercises again. In 1928 Major General Herbert B. Crosby, Chief of Cavalry, faced with personnel cuts, reorganized the cavalry regiments, which in turn reduced the size of the 1st Cavalry Division. Crosby's goal was to decrease overhead while maintaining or increasing firepower in the regiment. After the reorganization each cavalry regiment consisted of a headquarters and headquarters troop; a machine gun troop; a medical and chaplain element; and two squadrons, each with a headquarters element; and two line troops. The cavalry brigades' machine gun squadrons were inactivated, while the responsibility for training and employing machine guns fell to the regimental commanders, as in the infantry.

About the same time that Crosby cut the cavalry regiment, the army staff, seeking to increase the usefulness of the wartime cavalry division, published new tables of organization for an even larger unit. The new structure increased the size of the signal troop (177), expanded the medical unit to a squadron (233), and endorsing Crosby's movement of the machine gun units from the brigades to the regiments (2X176). A divisional aviation section, an armored car squadron (278), and tank company (155) were added, the field artillery battalion was expanded to a regiment (1,717), and divisional strength rose to 9,595.

Standard organization chart for a cavalry division in November 1940

With the arrival of the 1930s, serious work started on the testing and refining of new equipment and TO&Es for a mechanized and motorized army. To facilitate this, 1st Cavalry Division traded 1st Cavalry Regiment for 12th Cavalry Regiment on 3 January 1933.

Taking into account recommendations from the VIII Corps Area, the Army War College, and the Command and General Staff School, the board developed a new smaller triangular cavalry division, which the 1st Cavalry Division evaluated during maneuvers at Toyahvale, Texas, in 1938. Like the 1937 infantry division test, the maneuvers concentrated on the divisional cavalry regiments around which all other units were to be organized.

Following the test, a board of 1st Cavalry Division officers, headed by Brigadier General Kenyon A. Joyce, rejected the three-regiment division and recommended retention of the two-brigade (four-regiment) organization. The latter configuration allowed the division to deploy easily in two columns, which was accepted standard cavalry tactics. However, the board advocated reorganizing the cavalry regiment along triangular lines, which would give it a headquarters and headquarters troop, a machine gun squadron with special weapons and machine gun troops, and three rifle squadrons, each with one machine gun and three rifle troops. No significant change was made in the field artillery, but the test showed that the engineer element should remain a squadron to provide the divisional elements greater mobility on the battlefield and that the special troops idea should be extended to include the division headquarters, signal, and ordnance troops; quartermaster, medical, engineer, reconnaissance, and observation squadrons; and a chemical warfare detachment. One headquarters would assume responsibility for the administration and disciplinary control for these forces.

Although the study did not lead to a general reorganization of the cavalry division, the wartime cavalry regiment was restructured, effective 1 December 1938, to consist of a headquarters and headquarters troop, machine gun and special weapons troops, and three squadrons of three rifle troops each. The special troops remained as structured in 1928, and no observation squadron or chemical detachment found a place in the division. With the paper changes in the cavalry divisions and other minor adjustments, the strength of a wartime divisional rose to 10,680.

In order to prepare for war service, 1st Cavalry Division participated in the following maneuvers:

• Toyahvale, TX Maneuvers – 7 October through 30 October 1939.
• Cravens-Pitkin Louisiana Maneuvers – 13 August through 24 August 1940.
• Second 3rd Army Louisiana Maneuvers – 10 August through 4 October 1941.
• VIII Corps Louisiana Maneuvers near Mansfield, LA – 27 July 1942 – 21 September 1942.

On 25 June 1950, North Korea attacked South Korea, and the 1st Cavalry Division was rushed to Korea to help shore up the Pusan Perimeter, landed on Pohang On 18 July 1950.

After the X Corps attack at Incheon, a breakout operation was launched at the Pusan Perimeter. The division then joined the UN counteroffensive that recaptured most of South Korea by the end of September. The UN offensive was continued northwards, past Seoul, and across the 38th Parallel into North Korea on 1 October. The momentum of the attack was maintained, and the race to the North Korean capital, Pyongyang, ended on 19 October when elements of the division and the Republic of Korea Army (ROK) 1st Infantry Division captured the city. The advance continued, but against unexpectedly stiffening resistance. The Chinese People's Volunteer Army (PVA) entered the war on the side of North Korea, making their first attacks in late October.

On 28 October 1950, Eighth Army commander General Walton Walker relieved the 1st Cavalry Division of its security mission in Pyongyang. The division's new orders were to pass through the ROK 1st Division's lines at Unsan and attack toward the Yalu River. Leading the way on the twenty-ninth, the 8th Cavalry regiment departed Pyongyang and reached Yongsan-dong that evening. The 5th Cavalry Regiment arrived the next morning, with the mission to protect the 8th Cavalry regiment's rear. With the arrival of the 8th Cavalry Regiment at Unsan on the 31st, the ROK 1st Division redeployed to positions northeast, east, and southeast of Unsan; the 8th Cavalry took up positions north, west, and south of the town. Meanwhile, the ROK 15th Regiment was desperately trying to hold its position east of the 8th Cavalry, across the Samt'an River.

During the afternoon of 1 November, the PVA attack north of Unsan gained strength against the ROK 15th Regiment and gradually extended to the right flank of the 1st Battalion, 8th Cavalry. At nightfall, the 1st Battalion controlled the northern approaches to the Samt'an River, except for portions of the ROK 15th Regiment's zone on the east side. The battalion's position on the left was weak; there were not enough soldiers to extend the defensive line to the main ridge leading into Unsan. This left a gap between the 1st and 2nd Battalions. East of the Samt'an the ROK 15th Regiment was under heavy attack, and shortly after midnight it no longer existed as a combat force. At 19:30 on 1 November, the PVA 116th Division attacked the 1st Battalion, 8th Cavalry, all along its line. At 21:00 PVA troops found the weak link in the ridgeline and began moving through it and down the ridge behind the 2nd Battalion, penetrating its right flank and encircling its left. Now both the 1st and 2nd Battalions were engaged by the enemy on several sides. Around midnight, the 8th Cavalry received orders to withdraw southward to Ipsok. At 01:30 on 2 November, no PVA activity was reported in the 3rd Battalion's sector south of Unsan. But as the 8th Cavalry withdrew, all three battalions became trapped by roadblocks made by the PVA 347th Regiment, 116th Division south of Unsan during the early morning hours. Members of the 1st Battalion who were able to escape reached the Ipsok area. A head count showed the battalion had lost about 15 officers and 250 enlisted men. Members of the 2nd Battalion, for the most part, scattered into the hills. Many of them reached the ROK lines near Ipsok. Others met up with the 3rd Battalion, the hardest hit. Around 03:00 the PVA launched a surprise attack on the battalion command post. Hand-to-hand fighting ensued for about half an hour before the PVA were driven from the area. The disorganized members of the 3rd Battalion formed a core of resistance around three tanks on the valley floor and held off the PVA until daylight. By that time, only six officers and 200 enlisted men were still able to function. More than 170 were wounded, and the number dead or missing were uncounted. Attempts by the 5th Cavalry to relieve the beleaguered battalion were unsuccessful, and the 3rd Battalion, 8th Cavalry, soon ceased to exist as an organized force.[7]

Following the battle, there were disparaging rumors about the 1st Cavalry Division's fighting abilities, including a folk song of the time called "The Bug-Out Ballad".[8] The series of engagements were rumored to have given rise to the song were due (at least partly) to the myth that the division lost its unit colors.[9] Other Army and Marine units disparagingly described the division shoulder insignia as representing 'The horse they never rode, the river they never crossed, and the yellow speaks for itself'. Another version goes: "The shield they never carried, the horse they never rode, the bridge they never crossed, the line they never held, and the yellow is the reason why."

• Korean War casualties
  • 3,811 killed in action
  • 12,086 wounded in action
• Korean War honors
  • 9 Medal of Honor recipients:

    8th Engineer Battalion: Melvin L. Brown (4 September 1950).

    5th Cavalry Regiment: Lloyd L. Burke (28 October 1951), Samuel S. Coursen (12 December 1950), and Robert M. McGovern (30 January 1951).

    8th Cavalry Regiment: Emil Kapaun (1 and 2 November 1950) Tibor Rubin (23 July 1950, to 20 April 1953), James L. Stone (21 and 22 November 1952) Robert H. Young (9 October 1950)

    16th Reconnaissance Company: Gordon M. Craig (10 September 1950).

• 
  Division troops land at Pohang, Korea.
• 
  Cavalrymen holding a 2.36 in Bazooka.
• 
  Gun crew of a 105mm howitzer in action along the 1st Cavalry Division sector.
• 
  A Division observation post overlooks Hill 518, held by the North Koreans north of Waegwan. September 1950.
• 
  A .50 Cal. Machine gun squad of Co. E, 2nd Battalion, 7th Regiment, 1st Cavalry Division, fires on North Koreans along the north bank of the Naktong River, 26 August 1950.
• 
  Capt. Emil Kapaun, right, a chaplain with the 3rd Battalion, 8th Cavalry Regiment, helps evacuate an exhausted soldier from the battlefield.

The 1st Cavalry Division remained in the line until it was relieved by the 45th Infantry Division from the Oklahoma Army National Guard in January 1952. Following the relief, the division returned to Japan. The division returned to Korea in 1957, where it remained until 1965.

Troopers of the 1st Cavalry Division dismount from a hovering Huey helicopter.

1st Cavalry Division (Airmobile) organization in 1965.

As a result of the Howze Board, helicopters were used in Vietnam for reconnaissance, command and control, troop transport, attack gunships, aerial rocket artillery, medical evacuation, and supply.[10] It was a revolution in maneuver doctrine that freed the infantry from the limitations of terrain to attack the enemy at the time and place of its choosing.

The 11th Airborne Division had been reactivated at Fort Benning on 1 February 1963 and redesignated as the 11th Air Assault Division (Test). In September 1963, Air Assault I exercises tested the Airmobility concept at the battalion level at Fort Stewart in Georgia. Air Assault II, a much larger exercise, was conducted across two states in October 1964. The 11th Air Assault Division operated against the 82nd Airborne Division and the 11th thoroughly dominated the exercise.[11]

When the test proved successful, the assets of the 11th Air Assault Division (Test), the 10th Air Transport Brigade, and the 2nd Infantry Division were merged into a single unit. The colors and subordinate unit designations of the 1st Cavalry Division were transferred from its post in Korea. On 3 July 1965, the colors of the 11th Air Assault Division (Test) were cased and retired and the 1st Air Cavalry Division colors were moved onto the field at Doughboy Stadium and passed to the commander of the former 11th Air Assault Division, Major General Kinnard.[12] At the same time the personnel and units of the 1st Cavalry Division that remained in Korea were reflagged as a new 2nd Infantry Division. On 29 July 1965, President Lyndon B. Johnson ordered the 1st Air Cavalry Division to Vietnam.[13]^: 30[11][14][15]

1st Cavalry Designation	Previous Designation
HHC, 1st Cavalry Division	HHC, 11th Air Assault Division (Test)
1st Squadron, 9th Cavalry	3rd Squadron, 17th Cavalry
HHC, 1st Brigade (Airborne), 1st Cavalry Division	HHC, 1st Brigade (Airborne), 11th Air Assault Division (Test)
1st Battalion (Airborne), 8th Cavalry	1st Battalion (Airborne), 188th Infantry
2nd Battalion (Airborne), 8th Cavalry	1st Battalion (Airborne), 511th Infantry
1st Battalion (Airborne), 12th Cavalry	1st Battalion (Airborne), 187th Infantry
HHC, 2nd Brigade, 1st Cavalry Division	HHC, 2nd Brigade, 2nd Infantry Division
1st Battalion, 5th Cavalry	1st Battalion, 38th Infantry
2nd Battalion, 5th Cavalry	2nd Battalion, 38th Infantry
2nd Battalion, 12th Cavalry	1st Battalion, 23rd Infantry
HHC, 3rd Brigade, 1st Cavalry Division	HHC, 3rd Brigade, 2nd Infantry Division
1st Battalion, 7th Cavalry	2d Battalion, 23d Infantry
2nd Battalion, 7th Cavalry	2nd Battalion, 9th Infantry
5th Battalion, 7th Cavalry	1st Battalion, 11th Infantry
HHB, 1st Cavalry Division Artillery	HHB, 11th Air Assault Division Artillery
2nd Battalion (Airborne), 19th Artillery (105mm)	6th Battalion, 81st Artillery (105mm)
2nd Battalion, 20th Artillery (Aerial Rocket)	3rd Battalion, 377th Artillery (Aerial Rocket)
1st Battalion, 21st Artillery (105mm)	5th Battalion, 38th Artillery (105mm)
1st Battalion, 77th Artillery (105mm)	1st Battalion, 15th Artillery (105mm)
Battery E, 82nd Artillery (AVN)	Battery E, 26th Artillery (AVN)
HHC & Band, Support Command, 1st Cavalry Division	HHC & Band, Support Command, 11th Air Assault Division (Test)
15th Medical Battalion	11th Medical Battalion
15th Supply & Services Battalion	408th Supply & Services Battalion
Aerial Equipment Supply Company (Airborne)	165th Aerial Equipment Supply Detachment
15th Administrative Company	11th Administrative Company
27th Maintenance Battalion	711th Maintenance Battalion
8th Engineer Battalion	127th Engineer Battalion
13th Signal Battalion	511th Signal Battalion
15th Transportation Battalion	611th Aircraft Maintenance & Supply Battalion
545th Military Police Company	11th Military Police Company
191st Military Intelligence Detachment	11th Military Intelligence Detachment
371st Army Security Agency Company	Company C, 313th Army Security Agency Battalion

Shortly thereafter, the division began deploying to Camp Radcliff, An Khe, Vietnam, in the Central Highlands and was equipped with the new M16 rifle, the UH-1 troop carrier helicopter, UH-1C gunships, the CH-47 Chinook cargo helicopter, and the massive CH-54 Skycrane cargo helicopter.[16] All aircraft carried insignia to indicate their battalion and company.[17]

• 
  Major Bruce P. Crandall's UH-1D helicopter climbs after discharging infantrymen on a search and destroy mission in Ia Drang Valley in November 1965. .
• 
  1st Air Cavalry troopers exit a Huey chopper in Vietnam.
• 
  Bell AH-1G over Vietnam.
• 
  Troops unload from a CH-47 helicopter in the Cay Giep Mountains, Vietnam, 1967.
• 
  31 January 1968. Start of Tet Offensive as seen from LZ Betty's water tower, Quang Tri.
• 
  4 April 1968. 1st Cav forces at LZ Stud, the staging area for Operation Pegasus.
• 
  26 April 1968. Operation Delaware, second crashed helicopter on Signal Hill, A Shau Valley.
• 
  July 1968. Two 1st Cavalry Division LRP teams, Quang Tri.
• 
  Unknown Date. Tunnel rat preparing for entering Vietnamese Tunnel, Vietnam.
• 
  1965. Photo of USS Boxer (CV-21/LPH-4) loaded with helicopters of the 1st Cavalry Division.

The division's first major operation was to help relieve the Siege of Plei Me near Pleiku and the pursuit of the withdrawing People's Army of Vietnam (PAVN) which culminated in the Battle of Ia Drang, described in the book We Were Soldiers Once...And Young, was also the basis of the film We Were Soldiers. Because of that battle the division earned the Presidential Unit Citation (US), the first unit to receive such in the war. In 1966, the division attempted to root the communist Viet Cong (VC) and PAVN out of Bình Định Province with Operation Masher, Operation Crazy Horse and Operation Thayer. 1967 was then spent conducting Operation Pershing, a large scale search and destroy operation of PAVN/VC base areas in II Corps in which 5,400 PAVN/VC soldiers were killed and 2,000 captured. In Operation Jeb Stuart, January 1968, the division moved north to Camp Evans, north of Hue and on to Landing Zones Sharon and Betty, south of Quang Tri City, all in the I Corps Tactical Zone.[18]

27 January 1968. 1st Cavalry Division LRP at LZ Betty prelude to Tet.

In the early morning hours of 31 January 1968, the largest battle of the Vietnam War, the Tet Offensive, was launched by 84,000 PAVN/VC soldiers across South Vietnam. In the division's area of operation, the PAVN/VC forces seized most of the city of Huế. As the 3rd Brigade, 1st Cavalry Division, fought to cut off PAVN/VC reinforcements pouring into Huế, at Quang Tri City, five battalions, most from the 324th Division, attacked the city and LZ Betty (Headquarters 1st Brigade). To stop allied troops from intervening, three other PAVN/VC infantry battalions deployed as blocking forces, all supported by a 122mm-rocket battalion and two heavy-weapons companies armed with 82mm mortars and 75mm recoilless rifles. After intense fighting, 900 PAVN/VC soldiers were killed in and around Quang Tri City and LZ Betty. However, across South Vietnam, 1,000 Americans, 2,100 South Vietnamese, 14,000 civilians, and 32,000 PAVN/VC were killed.[18]

In March 1968 the division shifted forces to LZ Stud, the staging area for Operation Pegasus to break the siege of the Marine's Khe Sanh Combat Base—the second largest battle of the war. All three brigades participated in this airmobile operation, along with a Marine armor thrust. US Air Force B-52s alone dropped more than 75,000 tons of bombs on PAVN soldiers from the 304th and 325th Divisions encroaching the combat base in trenches. As these two elite enemy divisions, with history at Dien Bien Phu and the Ia Drang Valley, depleted, the division leapfrogged west, clearing Route 9, until at 0:800 hours 8 April, the 2nd Battalion, 7th Cavalry, linked-up with Marines at the combat base, ending the 77-day siege.[18][19]

LRPs on Signal Hill directing artillery on enemy trucks in valley.

On 19 April 1968, as the 2nd Brigade continued pushing west to the Laotian border, the 1st and 3rd Brigades (about 11,000 men and 300 helicopters) swung southwest and air assaulted A Shau Valley, commencing Operation Delaware. The PAVN was a well-trained, equipped, and led force. They turned A Shau into a formidable sanctuary —complete with PT76 tanks; powerful crew-served 37mm antiaircraft cannons, some radar controlled; twin-barreled 23mm cannons; and scores of 12.7mm heavy machine guns. A long-range penetration operation was launched by members of the Division's long-range reconnaissance patrol (LRP) against the PAVN when they seized "Signal Hill"—the name attributed to the peak of Dong Re Lao Mountain, a densely forested 4,879 feet (1,487 m) mountain midway in the valley—so the 1st and 3rd Brigades, slugging it out hidden deep behind the mountains, could communicate with Camp Evans near the coast or with approaching aircraft.[20][21]

Despite hundreds of B-52 and jet air strikes, the PAVN forces shot down a C-130, a CH-54, two [CH-47s and nearly two dozen UH-1s. Many more were lost in accidents or damaged by ground fire. The division also suffered more than 100 dead and 530 wounded in the operation. Bad weather aggravated the loss by causing delays in troop movements, allowing a substantial number of PAVN to escape to safety in Laos. Still, the PAVN lost more than 800 dead, a tank, 70 trucks, two bulldozers, 30 flamethrowers, thousands of rifles and machine guns, and dozens of antiaircraft cannons. They also lost tons of ammunition, explosives, medical supplies and foodstuffs.[20]

In mid-May 1968 Operation Delaware ended, however, the division continued tactical operations in I Corps as well as local pacification and "medcap" (medical outreach programs to local Vietnamese). In the autumn of 1968, the division relocated south to Phước Vĩnh Base Camp northeast of Saigon.[18] In May 1970, the division participated in the Cambodian Incursion, withdrawing from Cambodia on 29 June. Thereafter, the division took a defensive posture while US troops withdrawals continued from Vietnam. On 29 April 1971 the bulk of the division was withdrawn to Fort Hood, Texas, but its 3rd Brigade remained as one of the final two major US ground combat units in Vietnam, departing 29 June 1972. However, its 1st Battalion, 7th Cavalry, Task Force Garry Owen, remained another two months.[22]

In the Vietnam War, the division suffered more casualties than any other army division: 5,444 men killed in action and 26,592 wounded in action.[18][23][24] However, the First Marine Division suffered 7,012 men killed in action and the Third Marine Division suffered 6,869 men killed in action.[25][26]

1971–1974 Organization of the 1st Cavalry Division (TRICAP)

When the 1st Cavalry Division (Airmobile) departed Vietnam, its colors were retained by reflagging the existing 1st Armored Division at Fort Hood as the "new" 1st Cavalry Division, configured as an armored division. Concurrently, the colors of the 1st Armored Division were transferred to Germany where the 4th Armored Division was reflagged as the 1st Armored Division.

In the aftermath of Vietnam, the 1st Cavalry Division was converted from an airmobile light infantry role into a triple capabilities (TRICAP) division. The unit received an infusion of mechanized infantry and artillery, to make it capable of missions needing three types of troops; armored, airmobility and air cavalry.[27]

An infantryman with 1st Cavalry Division, 1st Brigade, 1st Battalion, 12th Cavalry wearing black beret, 1976[28]

In the post-Vietnam era, morale in the US Army waned. In response, the Department of the Army released a morale–enhancing order in 1973 permitting local commanders to encourage morale-enhancing uniform distinctions. Consequently, many units embraced the wear of various military berets.[29][30][31][32] The 1st Cavalry Division's use of various colored berets started in 1971 with the TRICAP experiment: black for armor, light–blue for infantry, red for artillery, and kelly–green for support.[27][32] The division eventually settled on the use of black berets for all 1st Cavalry soldiers and continued wearing them until the Army's moral enhancing order ended in 1979.[27][32][30][31]

However, the TRICAP concept was short-lived, and by 1975, the division was reorganized under the Round-Out Division concept, with two active duty armored brigades and one National Guard armored brigade - the Mississippi Army National Guard's 155th Armored Brigade from 1984–1991.[33]

The division participated in numerous REFORGER exercises, and was used to test new doctrinal concepts and equipment, including the XM-1 tank. The unit assignment and structure changed significantly, notably when 1st Battalion, 9th Cavalry, the division's most famous unit, was inactivated. The 13th Signal Battalion fielded mobile subscriber equipment (MSE), a secure digital communications system for corps and below units.

1st Cavalry Division organization 1989

1st Cavalry Division organization 1989 (click to enlarge)

• 1st Cavalry Division, Fort Hood (Texas)[34] (Operation Reforger unit. POMCUS materiel depots in Belgium (Grobbendonk, Zutendaal) and the Netherlands (Brunssum, Eygelshoven) and ammunition depot in Zutendaal)[35]
  • Headquarters and Headquarters Company[34]
  • 1st Cavalry Division Band[34]
  • 1st Cavalry Horse Detachment[34]
  • 1st Brigade[34]
    • Headquarters and Headquarters Company[34]
    • 2nd Battalion, 5th Cavalry[34] (Mechanized)[36]
    • 2nd Battalion, 8th Cavalry[34]
    • 3rd Battalion, 32nd Armor[34]
  • 2nd Brigade[34]
    • Headquarters and Headquarters Troop
    • 1st Battalion, 5th Cavalry[34] (Mechanized)[36]
    • 1st Battalion, 8th Cavalry[34]
    • 1st Battalion, 32nd Armor[34]
  • 155th Armored Brigade,[37] Tupelo[38] (Mississippi Army National Guard)[37]
    • Headquarters and Headquarters Company
    • 3rd Battalion, 141st Infantry[34] (Mechanized),[39][40] McAllen (Texas Army National Guard)
    • 1st Battalion, 155th Infantry (Mechanized),[37] McComb[38]
    • 1st Battalion, 198th Armor,[37] Amory[38]
    • 2nd Battalion, 198th Armor,[37] Greenville[38]
    • 2nd Battalion, 114th Field Artillery,[37] Starkville[38][41] (24 × M109A3)[41]
    • 106th Support Battalion (Forward),[37] Monticello[38]
    • Troop A, 98th Cavalry, Louisville (19 × M3 Bradley, 3 × M106A2)
    • 134th Engineer Company[37]
  • Cavalry Brigade[42]
    • Headquarters and Headquarters Troop
    • 1st Squadron, 7th Cavalry (Reconnaissance)[34] (Troop B (Ground) inactive) (21 × M3 Bradley, 3 × M106A2, 8 × AH-1S Cobra, 12 × OH-58C Kiowa, 1 × UH-60A Black Hawk)
    • 1st Battalion, 227th Aviation (Attack)[34] (18 × AH-64 Apache, 13 × OH-58D Kiowa,[43] 3 × UH-60A Black Hawk)[44]
    • Company D, 227th Aviation[34] (Command Support) (12 × OH-58C, 6 × UH-1H, 3 × EH-60A)
    • Company E, 227th Aviation[34] (Assault) (15 × UH-60A Black Hawk)
  • Division Artillery (DIVARTY)[34][45][43][41]
    • Headquarters and Headquarters Battery[34][41]
    • 1st Battalion, 82nd Field Artillery[34][46][43][47][41] (24 × M109A3)[41]
    • 3rd Battalion, 82nd Field Artillery[34][48][43][47][41] (24 × M109A3)[41]
    • Battery A, 21st Field Artillery[34][49][41] (9 × M270 MLRS)[43][41]
    • Battery A, 333rd Field Artillery (Target Acquisition)[34][50][43][41]
  • Division Support Command (DISCOM)[34]
    • Headquarters and Headquarters Company[34]
    • 15th Support Battalion (Forward)[34]
    • 27th Support Battalion (Main)[34]
    • 115th Support Battalion (Forward)[34]
    • Company F, 227th Aviation[34] (Aviation Intermediate Maintenance)
  • 4th Battalion, 5th Air Defense Artillery (assigned 16 November 1988)[51]
  • 8th Engineer Battalion[34][52]
  • 13th Signal Battalion[34][53]
  • 312th Military Intelligence Battalion (Combat Electronic Warfare & Intelligence)[34][54]
  • 545th Military Police Company[34][55]
  • 68th Chemical Company[34][56]

By October 1986 all heavy army and national guard divisions, including the 1st Cavalry Division, had transitioned to the Army of Excellence J-series TOE.[57] Thus the division's tank battalions fielded 58 M1A1 Abrams main battle tanks, 6 M3 Bradley cavalry fighting vehicles and 6 M106A2 mortar carriers.[58] The two tank battalions of the 155th Armored Brigade were also equipped with M1A1 Abrams tanks.[59] The division's and 155th brigade's mechanized battalions fielded 54 M2 Bradley infantry fighting vehicles, 12 M901 ITV anti-tank vehicles, 6 M3 Bradley cavalry fighting vehicles, 6 M106A2 mortar carriers.[60][61][62]

The authorized strength for an armored J-Series division was 17,027 men,[63] 348 M1A1 Abrams main battle tanks, 316 cavalry/infantry fighting vehicles, 72 M109 155mm self-propelled howitzers, 9 M270 Multiple Launch Rocket Systems, 12 M110 203mm self-propelled howitzers (transferred in 1986 to field artillery brigades at corps level),[64][39] 50 to 44 attack helicopters (50 for an all AH-1S Cobra combat aviation brigade, 44 for an all AH-64 Apache combat aviation brigade), 38 to 28 utility helicopters (38 if the Assault Aviation Company was equipped with UH-1H helicopters, 28 if the Assault Aviation Company was equipped with UH-60A Black Hawk helicopters; in the first case 2 were assigned to the aviation intermediate maintenance company as reserve), and 54 OH-58 Kiowa observation helicopters (4 assigned to divisional Aviation Office).[65] The divisional air defense artillery battalion was to be equipped with 18 MIM-72 Chaparral and 36 M247 Sergeant York (DIVAD) systems,[65] but with the cancelation of the York air defense battalions retained a mix of MIM-72 Chaparral, M163 Vulcan and FIM-92 Stinger systems, until the AN/TWQ-1 Avenger could be fielded, with the 1st Cavalry Division's 4th Battalion, 5th Air Defense Artillery receiving the first systems in 1989.[51]

The 1st Cavalry Division took control of the U.S. peacekeeping contingent in Bosnia-Herzegovina with approximately 6,900 personnel on 20 June 1998, as part of the multinational Stabilization Force (SFOR). 1st Brigade served for Rotation SFOR 4. 2nd Brigade served for Rotation SFOR 5. 2nd Brigade was alerted for action during the Russian move from Bosnia to the Pristina International Airport in June 1999, but no action was ultimately taken after consultation at the highest levels in NATO. In August 1999, the 10th Mountain Division took over operations in the Tuzla/Multinational Division North area.

Elements of the division arrived in Washington, D.C., shortly after the 11 September attacks.

Iraq

Soldiers from the 1st Cavalry Division engaging insurgents in the Battle of Baqubah, 14 March 2007.

In October 2001 an advance party of a division brigade combat team was deployed to the Iraq/Kuwait border. Some divisional units participated in the initial 2003 invasion of Iraq.[68] The division in its entirety deployed to Iraq in January 2004, sending an initial detachment of the 9th Cavalry Regiment into combat in September 2003. The 1st Cavalry relieved the 1st Armored Division in Baghdad. Among its subordinate formations were: Louisiana's 256th Infantry Brigade; Arkansas' 39th Infantry Brigade; element of A Company, 28th Signal Battalion; elements of Washington's 81st Armored Brigade; and the 2d Battalion, 162nd Infantry (Oregon Army National Guard), and Company E (Air Traffic Control Services), 126th Aviation, MA ARNG. After spending more than a year in Iraq, it redeployed back to the US by April 2005. It was relieved by the 3d Infantry Division. Division Artillery (DIVARTY) was organized as the 5th BCT. It contained HHB, DIVARTY; 1–7 CAV; 1–8 CAV; 1–21 FA; and the 515th FSB (Provisional). The division fought in many key battles against insurgents, including the Second Battle of Fallujah in 2004, where the 2nd Brigade Combat Team engaged in house to house intense urban combat to root out enemy cells in the city. During its OIF2 deployment division assigned and attached personnel numbered approximately 40,000. 168 personnel were killed in action, with approximately 1,500 wounded.

The division assumed duties as Headquarters, Multi-National Division – Baghdad from November 2006 to December 2007. 4th Brigade Combat Team, activated in 2005, arrived in Ninawa Governorate in October and November 2006. However, 2–12 Cavalry was detached, deployed to Baghdad to augment the division efforts there.

The 3d Brigade Combat Team, "Greywolf", deployed to the Diyala Province in September 2006 and fought in the Battle of Baqubah as a part of the Iraq War troop surge of 2007.

The division assumed duties as the Headquarters, Multi-National Division – Baghdad Jan 2009– Jan 2010. The deployment was extended by 23 days past the one year mark.

The 4th Brigade Combat Team "Long Knife" deployed to Mosul, Nineva Province, October 2006 to January 2008 and again September 2010 to September 2011.

Global missions

Soldiers of 2nd Battalion, 8th Cavalry Regiment, 1st Brigade Combat Team, 1st Cavalry Division during the 2014 Latvia Day Parade in Riga, Latvia during Operation Atlantic Resolve.

The 1st Cavalry Division currently holds three of the active Army's ten armored brigade combat teams. The division provides the Army and Combatant Commanders with trained and ready forces.

In April 2014, 2–5 Cavalry from 1st BCT, 1CD deployed to Europe to support Operation Combined Resolve II, a NATO exercise in southeastern Germany.[72] In October 2014, 1CD returned to Europe to support its NATO partners in another pair of exercises, this time participating in Operations Combined Resolve III and Atlantic Resolve with the majority of 1ABCT.[73][74]

A battalion task force from the Combat Aviation Brigade, 1st Cavalry Division deployed to Germany in November 2015; it participated in Atlantic Resolve, then stayed in Germany for the next nine months to provide aviation support to US and NATO forces across Europe.[75][76]

In June 2015, the 2d BCT was the first rotational brigade deployed to South Korea,[77] relieving the 1st BCT, 2nd Infantry Division as it inactivated. The 2d BCT deployed for nine months; in February 2016, the 2d BCT was replaced by the 1st BCT on another nine-month rotation.

1st Cavalry Division organization 2023

The 1st Cavalry Division's Combat Aviation Brigade performs a mock charge with the horse detachment.

The 1st Cavalry Division consists of a division headquarters and headquarters battalion, three armored brigade combat teams, a division artillery, a combat aviation brigade, and a division sustainment brigade.

• 1st Cavalry Division, Fort Cavazos, Texas
  • Division Headquarters and Headquarters Battalion "Maverick"[78][79]
    • Headquarters Support Company
    • Signal Intelligence and Sustainment Company
    • Horse Cavalry Detachment
    • 1st Cavalry Division Band
  • 1st Brigade Combat Team "Ironhorse"[1][80]
    • Headquarters and Headquarters Troop, 1st Brigade Combat Team
    • 2nd Battalion, 5th Cavalry Regiment "Lancers"
    • 2nd Battalion, 8th Cavalry Regiment "Stallions"
    • 2nd Battalion, 12th Cavalry Regiment "Thunder Horse"
    • C Troop,10th Cavalry Regiment (Armored Reconnaissance and Security Troop) "Cowboy"
    • 91st Brigade Engineer Battalion "Sabers"
    • 115th Brigade Support Battalion "Muleskinners"
  • 2nd Brigade Combat Team "Black Jack"
    • Headquarters and Headquarters Troop, 2nd Brigade Combat Team
    • 4th Squadron, 9th Cavalry Regiment Reconnaissance Surveillance and Target Acquisition "Dark Horse"
    • 1st Battalion, 5th Cavalry Regiment "Black Knights"
    • 1st Battalion, 8th Cavalry Regiment "Jumping Mustangs"
    • 1st Battalion, 9th Cavalry Regiment "Head Hunters"
    • 8th Brigade Engineer Battalion "Trojan Horse"
    • 15th Brigade Support Battalion "Gambler"
  • 3rd Brigade Combat Team "Greywolf"[1]
    • Headquarters and Headquarters Troop, 3rd Brigade Combat Team
    • 6th Squadron, 9th Cavalry Regiment Reconnaissance Surveillance and Target Acquisition "Saber"
    • 2nd Battalion, 7th Cavalry Regiment "Ghost"
    • 3rd Battalion, 8th Cavalry Regiment "Warhorse"
    • 1st Battalion, 12th Cavalry Regiment "Chargers"
    • 3rd Brigade Engineer Battalion "Beavers"
    • 215th Brigade Support Battalion "Blacksmiths"
  • 1st Cavalry Division Artillery “Red Team”
    • Headquarters and Headquarters Battery,1st Cavalry Division Artillery
    • 3rd Battalion, 16th Field Artillery Regiment "Rolling Thunder"
    • 1st Battalion, 82nd Field Artillery Regiment "Dragons"
    • 2nd Battalion, 82nd Field Artillery Regiment "Steel Dragons"
    • 6th Battalion, 56th Air Defense Artillery "Nighthawks"
  • 1st Air Cavalry Brigade “Air Cav”
    • Headquarters and Headquarters Company 1st Air Cavalry Brigade
    • 1st Squadron, 7th Cavalry Regiment "Garryowen"[81]
    • 7th Squadron, 17th Cavalry Regiment "Palehorse" (Attack/Reconnaissance, with AH-64E Apache)
    • 1st Battalion, 227th Aviation Regiment "First Attack" (Attack, with AH-64E Apache)
    • 2nd Battalion, 227th Aviation Regiment "Lobos" (Assault, with UH-60M Black Hawk)
    • 3rd Battalion, 227th Aviation Regiment "Spearhead" (General Support, with CH-47 Chinook and UH-60 Black Hawk)
    • Company E, 227th Aviation Regiment (MQ-1C Gray Eagle)
    • 615th Aviation Support Battalion "Cold Steel"
  • 1st Cavalry Division Sustainment Brigade[82] “Wagonmasters”
    • Headquarters and Headquarters Company, 1st Cavalry Division Sustainment Brigade[83]
    • Special Troops Battalion
      • 120th Quartermaster Company (Field Feeding)
      • 207th Brigade Signal Company
      • 502nd Human Resources Company
    • 553rd Division Sustainment Support Battalion

Shoulder Sleeve Insignia: Class A/OG-107, BDU, DCU, UCP, OCP

The shoulder sleeve insignia was originally approved 3 January 1921, with several variations in colors of the bend and horse's head to reflect the subordinate elements of the division. The design was authorized for wear by all subordinate elements of the division on 11 December 1934, and previous authorization for the variations was canceled. The insignia is worn subdued on field uniforms after experience in the Vietnam War, where the gold was too conspicuous. Normally, the gold is changed to the base color of the uniform to subdue it.[85] With the retirement of the green "Class A" uniform in October 2015, only the subdued version of the SSI is worn, on the ACU's left sleeve.

It consists on a yellow, triangular Norman shield with rounded corners 5.25 inches (133 mm) in height overall, a black diagonal stripe extends over the shield from upper left to lower right, and in the upper right a black horse's head cuts off diagonally at the neck, all within a 0.125-in green border.

Yellow was chosen because it is the traditional cavalry color, and the horse's head refer to the division's original cavalry structure. Black, symbolic of iron, alludes to the transition to tanks and armor. The black diagonal stripe represents a sword baldric and is a mark of military honor; it also implies movement "up the field" and thus symbolizes aggressive elan and attack. The one diagonal bend and the one horse's head also allude to the division's numerical designation.

A soldier wearing the SSI of the 1st Cavalry Division speaking with Gen Peter Pace, Chairman of the Joint Chiefs of Staff

Description: A metal and enameled device, 1 inch in height overall, consisting of a gold-colored Norman shield with a black horse's head couped in sinister chief, and a black bend charged with two five-pointed stars. Properly: Or, on a bend sable two stars of five points Or, in chief sinister a sable couped horse head, a border vert

Symbolism: The device is a miniature reproduction of the 1st Cavalry Division's shoulder sleeve insignia with the addition of two five-pointed stars. The Division Commander and the Division Staff wore the distinctive insignia design from 1922 to 1934 as a shoulder sleeve insignia.

Background: The distinctive unit insignia was approved 25 August 1965.

The flag of the 1st Cavalry Division is a white field with the distinctive yellow triangular Norman shield with rounded corners, a black diagonal stripe extending over the shield from upper left to lower right and in the upper right a silhouetted horse's head cut off diagonally at the neck with a green border.[86]

• The Division is featured in the 1979 film Apocalypse Now (1–9 Cavalry).
• In the 1981 movie, Stripes, the division insignia is displayed on the drill sergeant’s sleeve.
• The 1986 film Platoon is an extrapolation of director (and 1st Cavalry Division veteran) Oliver Stone's experiences in Vietnam. The characters of Sgt. Elias K. Grodin (Willem Dafoe) and S/Sgt. Robert Barnes (Tom Berenger) were real soldiers. Juan Angel Elias died in combat in Quang Tri Province, Vietnam, on 29 May 1968, serving with the 2nd Platoon, Company E, 52nd Inf. (LRP), and John Barnes, served in the same platoon at the same time and retired from the Army as a SGM. In the film, Elias wears the 1st Cavalry Division's unit insignia as his combat patch (the unit depicted in the film is: B Co, 3-22 IN, 3d BDE, 25th ID—Stone having served with both divisions).
• The 1992 book We Were Soldiers Once… and Young, along with its 2002 film adaptation, follows the 1st Battalion of the 7th Cavalry Regiment during the Battle of Ia Drang.
• The Division was depicted in the National Geographic Channel miniseries, The Long Road Home, created by Mikko Alanne. The miniseries was based on the 2007 book The Long Road Home: A Story of War and Family by Martha Raddatz. The miniseries premiered on 7 November 2017, on National Geographic.
• The Army football team honored the Division in the 2019 Army-Navy Game with special uniforms.[87]

• Robert D. Rucker, served in the Vietnam War
• Kate Norley, served in the Iraq War, the wife of John Oliver

• 1st Cavalry Division Horse Cavalry Detachment
• Complete list of commanders
• 1st Guards Cavalry Corps

• The Admiralties: Operations of the 1st Cavalry Division 29 February–18 May 1944 (reprint ed.). Washington, D.C.: United States Army Center of Military History. 1990 [1946]. Archived from the original on 15 June 2010. Retrieved 16 June 2010. – full text
• American Cavalry Divisions 1941–1945 order of battle information posted at the Combined Arms Research Library, Fort Leavenworth, Kansas
• The Brigade: A History, Its Organization and Employment in the US Army by John J. McGrath, Combat Studies Institute Press, Fort Leavenworth, Kansas, 2004
• U.S. Army Order of Battle 1919–1941, Volume 2. The Arms: Cavalry, Field Artillery, and Coast Artillery, 1919–41 by Lieutenant Colonel (Retired) Steven E. Clay, Combat Studies Institute Press, Fort Leavenworth, KS, 2011
• U.S. Army Combat Units 1 September 1939 order of battle information posted at the Combined Arms Research Library, Fort Leavenworth, Kansas

Wikimedia Commons has media related to 1st Cavalry Division (United States).

• 1st Cavalry Division Home Page Archived 24 December 2008 at the Wayback Machine – official site.
• 1st Cavalry Division Association
• 1st Cavalry Division Lineage & Honors Archived 10 July 2010 at the Wayback Machine at the United States Army Center of Military History
• Photographic history of 1st Cav LRRP Rangers in Vietnam
• Project PRIAM – WWII 1st Cavalry Division MIAs
• Vietnam 1st Air Cavalry Division 2nd Brigade 1st Battalion 5th US Cavalry, 2nd Battalion 5th US Cavalry, 2nd Battalion 12th US Cavalry Photos, Memorial Pages and links