In September the corps contained 24,416 men but in autumn more than 800 officers and about 10,000 instructors and soldiers were discharged.

Before leaving the camp, Latvians drafted in 1939 were demobilised, and replaced by about 4000 Russian soldiers from area around Moscow.

After German attack to Soviet Union, from June 29 to July 1 more 2080 Latvian soldiers were demobilised, fearing that they might turn their weapons against the Russian commissars and officers.

[1] In July 1940, 1st and 2nd workers regiments (the last later changed to 76th Latvian Rifle Regiment) were formed in Estonia from Latvian workers guard battalions and other active duty soldiers, who at the beginning of German attack, fled from Latvia to Estonia.

In the beginning the regiment guarded the Corps rear lines and fought with Estonian and Latvian Destruction battalions, but later joined in battles against the Army Group North (until July 29).

In Estonia, the regiment suffered heavy losses (from July 24 until August 4), then was surrounded, but broke out and fought in the Leningrad Oblast until October 20.

On October 22 on account of heavy losses the regiment was disbanded January 1942 and the leftover soldiers were transferred to other Latvian Rifle Divisions.

On August 16, 1942, they formed a Latvian Separate Reserve Riflemen Regiment in the Gorokhovets region as 246th Tank Brigade.

[6] On September 28, 1943, the regiment joined the Northwestern Front, 6th Air Army, 242nd Bomber Division.

Later the regiment was attached to other air force units, with a greater part in night bombing.