Fedor von Bock

By 25 August 1939, Bock was in command of Army Group North in preparation for the invasion and conquest of Poland. The objective of Army Group North was to destroy the Polish forces north of the Vistula. Army Group North was composed of General Georg von Küchler's 3rd Army, and General Günther von Kluge's 4th Army. These struck southward from East Prussia and eastward across the base of the Polish Corridor, respectively.

On 10 September Bock ordered the forces under his command to burn Polish villages located behind the front line to the ground if they were fired upon from the settlement and "if it proves impossible to identify the house from which the shots came". By the end of the military occupation of the country on 26 October 1939 531 towns and villages had been destroyed across Poland.[17] In five weeks, Poland was overrun by German and Soviet forces.

Bock in April 1940

Shortly after the conquest of Poland, on 12 October 1939 Bock was given command of Army Group B, with 29½ divisions, including three armoured divisions. These were tasked with advancing through the Low Countries and luring the northern units of the Allied armies into a pocket. Army Group B consisted of the 18th and 6th Armies. While his units were overrunning the Netherlands, in May 1940, Bock attempted to call on the exiled former Kaiser—Wilhelm II—at Doorn, but Bock was unable to gain admittance, the German troops guarding the residence having been instructed to prevent such visits.[18]

Bock participated in the Armistice with France in late June 1940.[19]

On 19 July 1940, Bock was promoted to the rank of field marshal during the 1940 Field Marshal Ceremony.[20] At the end of August, Army High Command transferred Army Group B to East Prussia; this included Kluge's 4th Army. On 11 September, Bock relinquished command of his occupation area in France to Field Marshal Wilhelm Ritter von Leeb.

On 2 February, Bock met with Hitler and questioned whether the Russians could be forced to make peace even if the Red Army was brought to battle and defeated. Hitler airily assured Bock that Germany's resources were more than sufficient and that he was determined to fight.[21] In preparation for Operation Barbarossa, on 1 April 1941 Army Group B was re-designated as Army Group Center.[22] Deployed in Poland, Army Group Center was one of the three army formations which were to lead the invasion of the Soviet Union. It included the 4th and 9th Armies, the 3rd and 2nd Panzer Armies and Luftflotte 2. On the left flank of Bock's Army Group Center was Army Group North, commanded by Wilhelm Ritter von Leeb; on the right flank was Army Group South, commanded by Gerd von Rundstedt.

The main objective of Army Group Center was to follow the route north of the Pripyat Marshes to Moscow. Following the border battles, the task of Army Group Center was to drive towards the cities of Minsk and Smolensk, and destroy the Soviet armies stationed there in encirclement battles.

At 03:15 on 22 June 1941, the first shots of Operation Barbarossa were fired; Germany invaded the Soviet Union with a timed declaration of war.[23]

Elements of Heinz Guderian's force had crossed the Bug River and were bypassing the city of Brest-Litovsk. Hermann Hoth's tanks were heading for Grodno on the Nieman River to seize the important river crossings. Several reconnaissance units from the 4th and 9th Armies had already crossed the Bug and Desna Rivers.

At 07:00, Bock flew from Posen to an advance airfield near the headquarters of XIII Infantry Corps. There, Major General Erich Jaschke gave Bock a summary of the progress of the invasion. Following this meeting, Bock visited Guderian's forward command post at Bokhaly. Bock then visited Joachim Lemelsen, who gave a report from the front. The roads on the Soviet side of the Bug River were already becoming too soft to support the weight of tanks. Despite this, the first day of the invasion had been spectacularly successful. Soviet resistance was reported as being light and complete surprise was achieved. All along the front rapid progress was being made.

Hermann Hoth with Bock (left) in Russia during Operation Barbarossa, 1941.

On the second day of Barbarossa, Bock crossed the Bug River escorted by Major General Gustav Schmidt. Later that day Bock was presented with reports that Soviet resistance was stiffening all along the front, especially on Guderian's southern flank. Meanwhile, Hoth's forces were advancing with much more ease through the Baltic states and Belarus. The first two days of Army Group Center's advance proved to be highly successful.

Hoth's army advanced so quickly that Bock immediately contacted Walter von Brauchitsch, requesting the bypassing of Minsk in favour of attacking toward Vitebsk so that a drive could be made for Moscow. Initially, the change in plan was accepted but it was soon overruled by Hitler, who favoured the encirclement and destruction of the large Soviet armies near Minsk. Bock wrote in his diary:

The envelopment of Minsk is not decisive. Besides, I am sure that the enemy expects us to attack Minsk, the next natural objective, and will concentrate defence forces there.[24]

Differences between Bock's strategic intent and the intent of High Command repeatedly surfaced. Bock continued to favour a direct drive toward Moscow, bypassing Soviet armies and leaving them to be destroyed by infantry, which advanced on foot, well behind tank columns. Bock argued that if encirclement were truly necessary then instead of diverting his tanks north and south to encircle and destroy smaller Soviet armies, a larger encirclement should be made eastward toward the Dvina-Dnieper River basins.[24]

Hitler decided against this plan, and insisted that the pockets containing Soviet armies must be destroyed before advancing deeper into Russia. Bock, enraged by this decision, was quoted as saying: "We are permitting our greatest chance of success to escape us by this restriction placed on our armour!"[24]

He hesitantly gave the order to abandon the drive toward Vitebsk and assist in the destruction of the pockets. On 25 June, Bock moved his headquarters from Posen to Kobryn, a town about 15 mi (24 km) northeast of Brest-Litovsk. On 30 June, the 4th and 9th Armies met each other near Slonim, trapping thousands of Soviet soldiers. However, many Soviet soldiers managed to escape eastward. Bock soon gave the order to disengage from the encirclement and prepare for a full-scale drive to the east. This order once again caused a confrontation between Bock and Brauchitsch.

On 3 July, Bock's forces were once again advancing eastward, with Guderian's tanks crossing the Berezina and Hoth's tanks crossing the Duna. This day marked the furthest distance covered by Bock's troops in a single day, with over 100 mi (160 km) travelled.[24] Four days later, Guderian's tanks crossed the Dnieper, the last great obstacle before Smolensk. However, Guderian was soon ordered by Günther von Kluge to withdraw back across the river. Bock soon reversed this order, and Guderian was allowed to re-cross the river. Bock protested Kluge's actions to High Command, to no avail.[24] On 11 July, Bock moved his headquarters again to Borisov, a Soviet town near the Berezina River.

According to General Günther Blumentritt, as reported by British military historian B.H. Liddell Hart, one reason Kluge privately gave for preferring to interrupt his and Guderian's drive for Moscow in July 1941 and to use their tanks instead for the proposed Kiev encirclement was that the change would temporarily put Kluge under the command of the amiable Rundstedt rather than leaving him under the thumb of Bock, who was "a very difficult man to serve."[25]

Bock on the Eastern Front during Operation Typhoon, October 1941

On 9 September, Army High Command instructed Bock to prepare an operational order for the assault on Moscow. Operation Typhoon was the code-name given to this new attack, which was to begin no later than 30 September. Bock supervised the planning and preparation of the operation, and a few days later it was approved by the High Command.

As part of the preparation for Operation Typhoon, Army Group Center would be reinforced and replenished with men and vehicles; it would be composed of three infantry armies (the 2nd, 4th, and 9th) and three tank armies (2nd, 3rd, and 4th Panzers). Colonel General Erich Hoepner would command the 4th Panzer Army, while the former two were outgrowths of Hoth's and Guderian's original Panzer Groups. The replenishment of Army Group Center for Operation Typhoon caused it to increase greatly in size: with almost 1.5 million soldiers, it was now larger than it was at the outset of Operation Barbarossa. Bock spent most of the remainder of September on inspection tours of his reinforced Army Group Center. On one occasion, Bock—along with Albert Kesselring—flew over Moscow.[26]

On 29 September, Bock held a conference with his senior commanders Strauss, Hoth, Kluge, Weichs, Hoepner, Guderian, and Kesselring. During the meeting the main operational plan was reviewed, with Bock again stressing that Moscow must be taken by 7 November, before the onset of winter, and to coincide with the anniversary of the Russian Revolution.[27] The following day, Operation Typhoon began with attacks from Guderian's and Hoth's armored forces. Several days later, the infantry armies began to move toward Moscow. With less than 150 km between the most advanced troops and Moscow, Bock estimated that his troops would enter the city in three to four weeks.[28] Almost immediately, Bock's forces encountered stiff Soviet resistance on the road to Moscow.

The 2nd Panzer Army—along with the XLVIII Panzer Corps—attacked important rail junctions near Oryol (Orel) and Bryansk. Hoepner's 4th Panzer Army soon crossed the Desna River and gained access to deep Russian territory. Meanwhile, Hoth's 3rd Panzer Army struck toward Rzhev on the Volga River.

On 3 October, Guderian's forces captured Orel and subsequently gained access to a paved highway which led to Moscow, some 180 mi (290 km) away. Meanwhile, elements of the 2nd Panzer Army reported that they had bypassed Bryansk and were heading toward Karachev. Bock ordered Guderian to press on toward Tula, but within hours this order had been reversed by High Command. The reversal of the order called for Guderian to attack Bryansk where—along with Vyazma—two massive encirclements of Soviet forces were occurring. Bock argued that the area between Orel and Tula remained relatively free of Soviet forces and that Tula could be captured within hours. Ultimately, Bock agreed to divert Guderian's tanks toward Bryansk.

Cold rain soon began to fall over the northern sectors of Army Group Center's front, and the roads soon turned into quagmires as part of the Rasputitsa. Virtually the entire front became stuck; the only vehicles capable of negotiating the mud were tanks and other tracked vehicles. However, these moved at a snail's pace (sometimes less than 2 mi (3.2 km) per day[2]), and fuel consumption soared. This further aggravated the problem of already poor supply lines.[2]

Slight improvements in the weather soon made it possible for Bock's forces to continue to seal the pockets around Bryansk and Vyazma. The dual encirclements of Soviet forces around Vyazma and Bryansk yielded some of the largest Soviet casualties since the beginning of Operation Barbarossa: some 650,000 prisoners were taken during these two encirclements, after which the Soviet armies facing Bock's Army Group Center no longer had the advantage of superior numbers.[2] Bock was one of the few German officers to protest the systematic maltreatment of Soviet prisoners of war, but took few steps to improve the conditions of those being held in the areas under his command.[29]

The weather soon deteriorated again, with the roads once more turning into impassable, muddy quagmires. Since 30 September, Bock had lost some 35,000 men, 250 tanks and artillery pieces, and several hundred other vehicles, many of which were mired in the mud. Fuel and ammunition supplies became dangerously low. Despite these problems, the advance toward Moscow continued as Hitler became increasingly impatient. When advance units of the 4th Panzer Army reached Kaluga and Maloyaroslavets, German forces were within 40 mi (64 km) of Moscow. Guderian's advance in the south was much slower. An attempt by his forces to capture Tula had failed, with considerable losses of men and tanks. However, other units captured Stalinogorsk and Venyov, indicating the possibility of bypassing Tula.

As Bock's forces smashed through the Red Army defense lines at Mozhaisk in mid-October, panic struck in the capital. Hundreds of thousands of civilians began to evacuate the city while others were forced into emergency volunteer units. Martial law was instituted as looting and pillaging of deserted stores increased. Marshal Semyon Timoshenko was relieved of command in favor of Georgy Zhukov, who had been organizing the defense of Leningrad. The main bulk of the Soviet government was evacuated to Kuibyshev, 500 mi (800 km) southeast of Moscow; however, Stalin remained in the capital after being reassured by Zhukov that the capital would not fall.[30]

The further Bock's forces advanced, the stiffer Soviet resistance became. The paved roads leading to Moscow became craters under constant Russian artillery fire, rendering them impassable. This forced the German troops into the mud and Army Group Center soon became stuck once again. The goal of capturing Moscow by mid-October could no longer be achieved. However, the sheer weight of the German advance could not be fully stopped, and on 21 October units of the 9th Army captured Kalinin.

As November arrived the mud soon turned into ice as temperatures dropped to −28 °C (−20 °F). While the ground hardened sufficiently enough to support vehicles, the cold weather added to the miseries of the German soldiers as many had not received winter clothing. Frostbite soon took its toll; many soldiers were severely affected and had to be evacuated.

On 20 November, Bock moved his field headquarters to an advanced forward position near the front lines. There he visited an artillery command post, where he could see the buildings of Moscow through his field glasses.[31] Several days later, German forces crossed the Moscow-Volga Canal and reached Khimki but soon fell back due to Soviet resistance. On 29 November, elements of the 4th Panzer Army reached the western suburbs of Moscow. On 4 December, units of the 2nd Army reached Kuntsevo, a western suburb of Moscow. Several units of Guderian's army bypassed Kolomna and reached the Moscow River. Meanwhile, the 3rd Panzer Army once again fought into Khimki. These were the last advances made by Army Group Center under Bock's command.[32]

Two German soldiers standing guard in the snow, west of Moscow, December 1941

On 6 December, with the temperature at −45 °C (−50 °F), fresh Russian troops commanded by Zhukov launched a huge counterattack. All along the front near Moscow German troops retreated, destroying whatever equipment they could not salvage. Several days later, High Command ordered a halt to all offensive operations. Bock wrote in his diary:

All along, I demanded of Army High Command the authority to strike down the enemy when he was wobbling. We could have finished the enemy last summer. We could have destroyed him completely. Last August, the road to Moscow was open; we could have entered the Bolshevik capital in triumph and in summery weather. The high military leadership of the Fatherland made a terrible mistake when it forced my army group to adopt a position of defense last August. Now all of us are paying for that mistake.[33]

By 13 December, German forces had retreated more than 80 km (50 mi) from the capital. On 18 December, Bock was relieved of his command of Army Group Center. The official pretext of this decision was health problems.[34] However, this was just one case out of some 40 high-ranking officers being relieved of their command following the failure to capture Moscow.[2]

Bock (far right) during a briefing at the headquarters of Army Group South with Hitler, June 1942

He was reassigned to lead Army Group South on 20 January 1942, after the death of Generalfeldmarshall Walter von Reichenau from a stroke.[35] Thus, in May 1942, he commanded the defending forces that delivered the devastating defeat to the Soviet winter offensive and severely depleted Soviet tank strength in the Second Battle of Kharkov. On 28 June 1942, Bock's offensive split the Russian front into fragments on either side of Kursk. Three armies (Weich's 2nd Army, Hoth's 4th Panzer, and Paulus' 6th Army)—along with 11 panzer divisions—fanned out toward Voronezh and the Don River. Paulus' armoured divisions reached the Don on either side of Voronezh on 5 July. The Soviet High Command created a Voronezh Front under Nikolai Vatutin, who reported directly to Moscow. Bock wanted to eliminate Vatutin's forces before extending his own flank too deeply into the void created by the strength and speed of the German offensive. Hitler was not pleased with Bock's plan to delay the push toward Stalingrad. On 7 July, Hitler split Army Group South into Army Groups A and B. Army Group A was given to Field Marshal Wilhelm List to command.[35] On 17 July, Hitler relieved Bock as commander of Army Group B, replacing him with Maximilian von Weichs. Bock never again occupied a senior command position.[36]

Bock was injured on 3 May 1945, as his car was strafed by a Hawker Tempest from No. 486 Squadron RNZAF[37] killing his wife, stepdaughter, and a friend. Initially the only survivor of the attack, Bock died of his injuries the following day.[38] He was buried in a cemetery in Lensahn.