In December 1917, he participated in the suppression of the junker uprising in
Irkutsk. In May 1918, he led battles against the
Czechoslovak corps in the
Omsk region, and later led several Siberian partisan units. At the beginning of 1919, Eidemanis commanded the 16th Rifle Division on the Don Front in the battles against General
Krasnov, then as the commander of the 41st, later the
46th Rifle Division, he fought against
Anton Denikin's troops. In 1920, Eidemanis commanded the
13th Army in the battles against
Pyotr Wrangel's army. The army under his command played a decisive role in the defense of the key to
Crimea, the
Kakhovka bridgeheads. In 1921, Eidemanis was appointed deputy commander of the Ukrainian and Crimean war zone. There, together with
Mikhail Frunze, he led the fight against
Nestor Makhno's units in Ukraine. After the end of the civil war in 1924, he was appointed commander of the
Siberian Military District, and from 1925 to 1932, Eidemanis worked as the head and commissar of the
Frunze Military Academy. In 1932, Eidemanis became a member of the Revolutionary Military Council and the chairman of the Central Council of the
Osoaviakhim paramilitary organization. ==Literary activities==