Mechanised corps (Soviet Union)

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A mechanised corps was a Soviet armoured formation used prior to the beginning of World War II and reintroduced during the war, in 1942.

Pre-war development of Soviet mechanised forces

In

armored trains. The country did not have its own tanks during the Civil War
of 1918–1920.

In January 1918, the Russian

MS-1
tanks (Malyy Soprovozhdeniya 1, 'Small Convoy 1'). In 1929, it established the Central Directorate for Mechanisation and Motorisation of the Workers’ and Peasants’ Red Army. Tanks became a part of the mechanised corps at this point.

During this time, and based on the experience of the Civil War with its sweeping movements of horse-mobile formations, Soviet military theorists such as

deep operation and deep combat theories. From the second half of the 1920s, tank warfare development took place at Kazan, where the German Reichswehr
was allowed to participate.

In 1930, the First Mechanised Brigade had its own tank regiment of 110 tanks. The formation of two mechanized corps was authorized in 1932. The first two corps formed were the 11th Mechanized Corps in the

Ukrainian Military District. That same year, the Red Army established the Military Academy of Mechanization and Motorization of the Workers’ and Peasants’ Red Army (which existed up until 1998 as the Military Academy of Armored Units named after Rodion Malinovsky). Mikhail Katukov
had his first major command as acting commanding officer of the 5th light Tank Brigade of the 45th Mechanized Corps in 1938.

In 1931–1935, the Red Army adopted light, medium, and later heavy tanks of different types. By the beginning of the 1936, it already had four mechanised corps, six separate mechanised brigades, six separate tank regiments, fifteen mechanised regiments within cavalry divisions and considerable number of tank battalions and companies. The creation of mechanised and tank units marked the dawn of a new branch of armed forces, which would be called armored forces. In 1937, the Central Directorate of Mechanization and Motorization was renamed to Directorate of Automotive Armored Units (Avtobronetankovoye upravleniye) and then to Chief Directorate of Automotive Armored Units (Glavnoye avtobronetankovoye upravleniye), headed by Dmitry Pavlov. This was carried out under Marshal Tukhachevsky, one of the generals shot in June 1937 in the Great Purge.

Soviet armored units gained some combat experience during the

Battle of Khalkhin Gol (1939) and the Winter War with Finland (1939–1940). But these operations and also observation of the Spanish Civil War, led People’s Commissar for Defence Marshal Voroshilov to the conclusion that the mechanised corps formations were too cumbersome. A decision was taken to disband them in November 1939, and to distribute their units among infantry. This was a mistake, as the success of German panzer divisions in France showed, and in May 1940 Voroshilov was replaced by Marshal Timoshenko. Future Marshal Zhukov had drawn different conclusions from his own experience at Khalkhin Gol and from the other battles.[1]

The decision was reversed, and on 6 July 1940 the NKO ordered the formation of nine new mechanised corps, and in February and March 1941, began forming an additional 20.[2] By June 1941, 29 existed in the Red Army, although the degree of staffing they had significantly varied.[3] However, there was not enough time before the German attack in June 1941 to reform the mechanised corps units fully and for them to reach their former efficiency.[4] [5]

Period 1940–41

In June 1941 there were twenty-nine

T-34 and KV-1 tanks.[8] Both of these formations, having more than 350 of the T-34 plus KV-1, could be reasonably expected to break through any German Panzer Corps of the time, not to say Army Corps.[8] Such estimation is based on sheer number of concentrated tanks, their main armament, the thickness of their armor,[9] their actual failure rate, the eventual losses to aircraft, and normal scheduled maintenance.[8] What it does not count are human-related factors.[8]

That being said, during the war against the Axis, all mechanised corps stationed in frontline areas were destroyed during the early phase of the invasion of the Soviet Union (including 4th and 6th), and less than a month after the attack, the Red Army formally abolished the Mechanised Corps as a formation type. Remaining tanks were concentrated in smaller formations that were easier to handle.

Period 1942–46

In September 1942, the General Headquarters (Stavka) authorized the formation of a new type of mechanised corps which was to become the main operational mechanised formation for the remainder of the war. They were about the same size as a German panzer division, and designed as a true combined-arms formation with a good balance of armor, infantry, and artillery. Mechanised corps were not to be used in breakthrough battles, but only in the exploitation phase of an operation. They shared with the new Tank Corps a four-manoeuvre-brigade structure – three mechanised brigades and one tank brigade, plus an anti-tank regiment, artillery, and other support units. The new tank corps had three tank brigades and one mechanised brigade.[10]

A total of thirteen mechanised corps were formed during the war against the Axis nations, nine of them becoming

Sherman M4A2. The mechanised corps were converted to mechanised divisions relatively quickly after the war – by 1946 in most cases.[11]

Composition of a mechanised corps (1941)

  • 2 Tank Divisions
    • 2 Tank Regiments
    • Motorized Rifle Regiment
    • Motorized Howitzer Regiment
    • Division Troops
      • Antiaircraft Battalion
      • Armored Reconnaissance Battalion
      • Truck Battalion
      • Maintenance Battalion
      • Medical Battalion
  • 1 Motorized Division
    • 2 Motorized Rifle Regiments
    • Light Tank Regiment
    • Motorized Artillery Regiment
    • Division Troops
      • Antitank Battalion
      • Antiaircraft Battalion
      • Reconnaissance Battalion
      • Truck Battalion
      • Division Trains
  • Corps Troops
    • 1 Motorcycle Regiment
    • 1 Signal Battalion
    • 1 Motorized Engineer Battalion
    • 1 Aviation Troop

Total

1,031 Tanks (420 T-34s, 126 KVs, 485 Light tanks)
36,100 personnel
5 Tank Regiments with 20 Tank Battalions
4 Motorized Rifle Regiments with 12 Motorized Rifle Battalions
3 Motorized Artillery/Howitzer Regiments with 6 Artillery Battalions

The formation was seen as very tank-heavy, lacking sufficient infantry or artillery to support the tank formations. The 1942 order of battle was much more flexible.

Composition of a mechanised corps (1944)

  • 3 Mechanised Brigades
    • 1 Tank Regiment
    • 3 Motorized Rifle Battalions
    • 1 Submachine Gun Company
    • 1 Antitank Rifle Company
    • 1 Mortar Battalion
    • 1 Artillery Battalion
    • 1 Anti Aircraft Machine Gun Company
    • 1 Pioneer Mine Company
    • 1 Trains Company
    • 1 Medical Platoon
  • 1 Tank Brigade
    • 3 Tank Battalions
    • 1 Motorized Submachine Gun Battalion
    • 1 Anti-aircraft Machine Gun Company
    • 1 Trains Company
    • 1 Medical Platoon
  • 3 Assault Gun Regiments
  • 1 Motorcycle Battalion
  • 1 Mortar Regiment
  • 1 Anti-aircraft Regiment
  • 1 Rocket Launcher Battalion

Total:[12]

246 Armored Fighting Vehicles (186 T-34, 21 SU-76, 21 ISU-122, 21 ISU-152)
16,438 personnel
3 Tank Regiments and 3 Tank Battalions
9 Motorised Rifle Battalions and 1 Motorised Submachine Gun Battalion
3 Motorised Artillery Battalions

List of Soviet mechanised corps

The listing and data here are drawn from Keith E. Bonn, Slaughterhouse: Handbook of the Eastern Front, Aberjona Press, Bedford, PA, 2005, and V.I. Feskov et al., The Soviet Army during the Period of the Cold War, Tomsk University Press, Tomsk, 2004 (mostly pages 71–75).

Guards

See also

References

  1. ^ Cross 1993, p. 66.
  2. ^ Glantz, Stumbling Colossus, 116–117.
  3. ^ – h & catid = 1:2009-12-27-11-21-03 & Itemid = 24 DIVISION FIVE: A short biography of Nikolai Starodymov
  4. ISBN 9780760313022
    .
  5. ISBN 9780714652030
    .
  6. ISBN 978-1-4461-9180-4
    .
  7. ^ Joseph Page, Tim Bean, Will Fowler (2002): Russian Tanks of World War II, MBI.
  8. ^
    ISBN 978-83-7510-130-0. (the only English translations of Solonin's works seem to be, as of June 2011, these online chapters
    )
  9. ^ The 37 mm cannon found in majority of German tanks and majority of German infantry divisions could not be reasonably expected to penetrate either T-34 or KV-1 front or side armor in combat conditions. To attempt to inflict any damage on these Soviet tanks, cannon larger than 37 mm was needed; in German Army Corps, 2 larger guns were assigned to some infantry regiments; the newest Panzer III and Panzer IV models also had larger guns, with 60–207 tanks assigned to each German Panzer Corps. Solonin, 2007, pp. 102–103, 528–529.
  10. ^ Keith E. Bonn (ed), Slaughterhouse: Handbook of the Eastern Front, Aberjona Press, 2005, p.428, 430
  11. ^ Feskov et al., 2004, p.48
  12. ^ Red Army Handbook, pp. 81, 86, and 89.
  13. ^ 2nd Mechanised Corps 1941
  14. ^ Combat Composition of the Soviet Army, 1 July 1941
  15. ^ John Erickson, The Road to Stalingrad, Cassel Military Paperbacks 2003 edition, p.148
  16. ^ Drig, Yevgeny (18 March 2009). "17 механизированный корпус" [17th Mechanized Corps]. mechcorps.rkka.ru (in Russian). Archived from the original on 1 June 2011. Retrieved 20 August 2016.
  17. ^ Glantz 2010, p. 156.
  18. ^ Borisenko, Nikolai (2005). "20-Й МЕХАНИЗИРОВАННЫЙ КОРПУС И ЕГО РОЛЬ В ОБОРОНЕ МОГИЛЕВА ЛЕТОМ 1941–ГО ГОДА" [20th Mechanized Corps in the defense of Mogilev, summer 1941]. Mogilev Search Gazette (in Russian). No. 3. Retrieved 20 August 2016.
  19. ^ Glantz SC 231
  20. ISBN 9781906033729
    .
  21. ^ a b c Glantz, Stumbling Colossus, Table 8.5, 231.
  22. ^ Niehorster listing of Mechanised Corps on 22 June 1941[permanent dead link]
  23. ^ "1-й гвардейский механизированный корпус" [1st Guards Mechanised Corps]. tankfront.ru (in Russian). Retrieved 2016-09-17.
  24. ^ Feskov et al 2013, pp. 204–205.
  25. ^ Feskov et al 2013, pp. 162–164.
  26. ^ Feskov et al 2013, p. 588.
  27. ^ Michael Holm, 4th Guards Motorised Rifle Division, accessed February 2015.
  28. ^ "6-й гвардейский механизированный корпус" [6th Guards Mechanized Corps]. tankfront.ru (in Russian). Retrieved 2016-09-17.
  29. ^ a b Feskov et al 2013, p. 404.
  30. ^ "7-й гвардейский механизированный корпус" [7th Guards Mechanised Corps]. tankfront.ru (in Russian). Retrieved 2016-09-17.
  31. ^ Bonn, 2005, p.351
  32. ^ Feskov et al 2013, p. 392.
  33. ^ "9-й гвардейский механизированный корпус" [9th Guards Mechanised Corps]. tankfront.ru (in Russian). Retrieved 8 September 2016.
  34. ^ Feskov et al 2013, p. 485.
  35. ^ Feskov et al 2013, p. 162.

Sources and further reading

External links

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