Забайкальский военный округ
The 46th was soon transferred to Irkutsk, assigned to the Transbaikal Military District. It was reorganized under peacetime tables of organization and equipment with an authorized strength of 6,000 personnel in April 1940. When Operation Barbarossa, the German invasion of the Soviet Union, began on 22 June 1941, the division was assigned to the 32nd Rifle Corps of the 16th Army of the Transbaikal Military District, and still stationed in Irkutsk. It was commanded by Major General Alexander Filatov at the time. Sent west, it was wiped out during the Battle of Smolensk in July.