The division was first formed as the Penza Infantry Division, which was formed by Order No. 9 of the
1st Army of the
Eastern Front on 6 July 1918. Until 15 September 1918 it was known as the 1st Penza Infantry Division. By order of the Field Staff of the
RVSR 1477 N / A on 16 March 1919, it was named the 20th Rifle Division. By an order of the Separate Caucasus Army on 13 October 1921, the division was disbanded and its headquarters used to form that of the 6th Separate Caucasian Rifle Brigade. The brigade was soon renumbered as the 3rd Separate Caucasian Rifle Brigade on 29 November of that year, and on 26 June 1922 became the 3rd Caucasian Rifle Division of the Separate Caucasus Army. The division was renamed the 3rd Caucasian Mountain Rifle Division on 1 October 1931 and it was redesignated as the 20th Caucasian Mountain Rifle Division on 21 May 1936 to standardize its name. It was awarded an Honorary Revolutionary Red Banner of the Central Executive Committee (1924),
Order of the Red Banner. Was part of the 1st Army of the Eastern Front (July 1918 - October. 1919),
10th Army (Oct. 1919-Feb. 1920, March - April. 1920), under the operational control of the
1st Cavalry Army (Feb. - March 1920),
11th Army (May 1921 - Separate Caucasus Army, from August 1923 -
Red Banner Caucasus Army) (April 1920 - May 1935), in the Transcaucasian Military District (May 1935). ==Second Formation==