10th Army (Soviet Union)
The Army was formed in September 1939 in the Moscow Military District, and then deployed to the Western Special Military District. During the Soviet invasion of Poland it consisted, according to Steven Zagola, of the 11th Rifle Corps (6th, 33rd, and 121st RD), the 16th Rifle Corps (8th, 52nd, and 55th RDs) and the 3rd Rifle Corps (in reserve) (33 and 113 RDs), under General I.G. Zakharin.
On 22 June 1941, at the onset of Operation Barbarossa the Army was part of the Soviet Western Front. It consisted of the 1st Rifle Corps (2nd and 8th Rifle Divisions), 5th Rifle Corps (including 13th, 86th, and 113th Rifle Divisions), 6th Cavalry Corps (6th and 36th Cavalry Divisions), and 6th and 13th Mechanised Corps, under General K.D. Golubev. It was encircled by German forces during the in June 1941 and largely destroyed.
By late June, the German Army Group Centre surrounded the 3rd, 4th and the 10th Armies in the Battle of Białystok-Minsk. In the end, all the formations and units of the 10th Army were defeated. On June 30 while trying to cross the highway Minsk-Baranovichi the army headquarters was destroyed, coming out of the remnants of the environment were addressed by fitting of the 4th Army. The headquarters was officially disbanded on 5 July 1941. The commander of the 10th Army, Major General KD Golubev, and the army artillery commander, Major General M. Barsukov, escaping from the encirclement in a consolidated group with the August 86th Border Detachment of the NKVD, in late July Golubev was appointed commander of 13th Army, which participated in the Battle of Smolensk.
It was then reformed in November 1941 in the Volga region, with nine divisions, seven of which were new formations. Soviet official websites give the nine divisions as the 322nd, 323rd, 324th, 325th, 326th, 328th and 330th Rifle, and 57th & 75th Cavalry, thus including two cavalry divisions. Nine of these divisions had been formed in the space of three weeks from the reserve of the Moscow Military District and been trained for 12 hours a day. General Lieutenant Filipp Golikov took command. Golikov's 1967 book describes how the army finished its concentration in the Penza area on 8 November 1941, after which 15 days were devoted to combat training and 5 days to construction of living quarters and other facilities. There were shortages of everything including warm winter clothing. The majority of the troops were between 30 and 40 years of age, and in some cases up to 65% of the men had no military training. Initially part of the Stavka reserve, it was reassigned to the Western Front for the Battle of Moscow, after moving up to Ryazan attacking on the morning of 6 December 1941. In 1942 it continued its defensive operations on the central axis, and in 1943 took part in the Battle of Smolensk.
The 10th Army headquarters with associated units was withdrawn from the Western Front to the Stavka Reserve in early April (General Staff's directive of 7.04.44). From 10 April it was moved to Roslavl, where it was to take control of the 81st and 103rd Rifle Corps (total 5 divisions). That same month the army was disbanded, and its headquarters formed the basis of Headquarters 2nd Belorussian Front while its formations were reassigned to the 49th Army.
References and sources 
- Steven Zagola, Poland 1939, Osprey Books.
- Orbat.com/Niehorster 10th Army Order of Battle, 22 June 1941, accessed April 2008
- Keith E. Bonn (ed)., 'Slaughterhouse: The Handbook of the Eastern Front,' Aberjona Press, Bedford, PA, 2005, p.313
- F.I. Golikov, 'V Moskovskoi bitve,' (In the Moscow battle), Moscow, Nauka, 1967, p.8-51, in William J. Spahr, 'Zhukov: The Rise and Fall of a Great Captain,' Presidio Press, Novato, CA., 1993, p.89-91