1st Army of the Eastern Front.
15th Infantry Division (formerly the Inzen Revolutionary Division) (June-November 1918).
20th Rifle Division (former Penza Infantry Division) (July 1918 - November 1919).
24th Samara-Ulyanovsk Iron Rifle Division (the former 1st Simbir Combined Infantry Division.) (July 1918 - December 1919).
2nd Army of the Eastern Front.
1st Oryol Infantry Division
28th Infantry Division
Vyatka Special Rifle Division
4th Army of the Eastern Front
22nd Rifle Division (formerly the 2nd Nikolaev Rifle Division) (July 1918 - September 1919).
25th Infantry Division (the former 1st Nikolaev Rifle Division) (July 1918 - January, March-May, July 1919, May 1920).
Ural Rifle Division (July-December 1918).
Novouzensk Infantry Division (August-September 1918),
Another source mentions more
1st Oryol Infantry Division
1st Saratov Infantry Division
Volsk Infantry Division
5th Army of the Eastern Front.
26th Zlatoust Rifle Division (former Right-Bank Group of Forces of the 5th Army.) (August 1918 - June 1920).
27th Omsk Rifle Division (former Left-Bank Group of Forces of the 5th Army.) (September 1918 - May 1920)
Another source mentions more
1st Smolensk Infantry Division
4th Petrograd Infantry Division (it will become later the 11th Infantry Division)
As part of the red divisions, squads of sailors and Chinese are often found, less often Hungarian units of prisoners of war.
The 5th Latvian regiment, consisting of 507 people, participated in the defense of Kazan. He suffered very heavy losses in battle, and about 300 people were captured and shot.