Transbaikal Military District

The district was formed in response to the Japanese invasion of China and military escalation in the region. The armies and corps of the district took part in the battle of Khalkhin Gol under General Georgy Zhukov. In June 1940 the 16th Army was formed in the District before being transferred to the west. On June 22, 1941, the District comprised the 17th Army, Air and Air Defence commands, 12th Rifle Corps (65th and 94th Rifle Divisions), 93rd Rifle Division, the Transbaikal Fortified Region, two gun artillery regiments, a howitzer artillery regiment, and smaller units.[1] The Transbaikal Military District became the Transbaikal Front; a front formed on September 15, 1941 in order to prevent a possible attack by the Japanese Kwantung Army. Against the general trend of Soviet tank divisions being disbanded in the first few months of the German invasion during the Second World War, due to heavy losses, the 57th and 61st Tank Divisions were active in the District in 1941.[2]

On 30 September 1945 the Transbaikal Front was disbanded and reorganized as the Transbaikal-Amur Military District, following the success of the Soviet invasion of Manchuria. On 10 July 1947, Headquarters Transbaikal-Amur Military District was amalgamated with HQ 36th Army to become the Transbaikal Military District[3] (second formation).

In 1955 the 61st Tank Division became the 13th Tank Division, then two years later the 13th Motor Rifle Division (Ulan Ude), but was then disbanded in 1957.[4] The 6th Guards Tank Army was stationed in Mongolia for fifteen years after the end of the war, reporting to the Transbaikal Military District. The then friendship with China and the Khrushchev reductions in the Soviet Ground Forces' strength meant the 6th Guards Tank Army was relocated to the Kiev Military District. Perhaps as a consequence, the 9th Guards Motor Rifle Division was disestablished.

In the late 1960s the situation on the Sino-Soviet border became more tense and many new units were sent to Siberia, or formed there, such as the 29th Army. Among these formations was the 11th Guards Motor Rifle Division, which was transferred from Smolensk to Bezrechnaya in May 1968.[5] Thanks to this buildup, Chita became one of the developed cities in Eastern Siberia. In 1988 the District included the 29th Army at Ulan-Ude (5th Guards Tank Division, 52nd, 91st and 245th Motor Rifle Divisions), the 36th Army at Borzya (11th Guards, 38th Guards, and 122nd Guards Motor Rifle Divisions), the 212th Guards District Training Centre at Chita (just renamed from the 49th Tank Training Division),[6] the 150th Training Motor Rifle Division, and the 39th Army, controlling Soviet troops in Mongolia, which had its headquarters at Ulan-Bator and included the 2nd Guards Tank Division, 51st Tank Division, and 12th, 41st, and 91st Motor Rifle Divisions. The Soviet troops in Mongolia were finally withdrawn between 1989 and 1992. Air support to the troops in Mongolia was provided for a time by the 44th Mixed Aviation Corps headquartered at Choybalsan, from 1982 until 1988.[7]

In 1998, the Trans-Baikal Military District was merged with the Siberian Military District, in accordance with Presidential Decree № 900 of 27.07.1998, and the order of the Ministry of Defence of the Russian Federation № 048 of August 11, 1998.[8] The new composition of the Siberian Military District actually began operations on December 1, 1998.