Offensive operations of the troops of the Red Army’s Eastern Front (commander Sergey Kamenev, 5 to 29 May – Aleksander Samoilo) to defeat the troops of the Aleksander Kolchak’s Russian Army.

Kolchak’s offensive in the spring of 1919 caused a threatening situation for the Reds. The Eastern Front was recognized as the main front of the Russian SFSR, and reinforcements, weapons, and ammunition were urgently sent there.

The front’s troops were divided into the Northern (commander Vasily Shorin) and the Southern (commander Mikhail Frunze) groups of armies. On April 10, the Military Revolutionary Council of the Eastern Front adopted a directive, according to which the main blow in the direction of Buguruslan, Belebey, and Ufa was delivered by the Southern Group. On April 28 – May 13, during the Buguruslan operation, the 5th (commander Mikhail Tukhachevsky) and the Turkestan armies (commander Georgy Zinoviev) by the actions of the 25th (division head Vasily Chapaev) and 26th (division head Heinrich Eikhe) rifle divisions inflicted a heavy defeat on the Western Army of Whites. On May 15–19, as a result of the Belebey operation, the Turkestan and 1st armies (commander Gaya Gai) defeated General Vladimir Kappel’s Volga Corps. On May 25 – June 19, during the Ufa operation, the Turkestan Army (commander Mikhail Frunze) occupied Ufa, and the 5th Army occupied Birsk. At the same time, the Reds repulsed the Whites’ attacks on Orenburg and Uralsk.

The Northern group operated in the direction of Sarapul and Votkinsk defeated the Whites’ Siberian Army, and by mid-June occupied the Izhevsk-Votkinskiy industrial region. By June 20, the Red troops reached the distant approaches to Perm.

As a result of the operations, the Red Army troops defeated Aleksander Kolchak’s Western and Siberian armies, advanced 350–400 km to the east, and occupied important agricultural and industrial areas. In 1919–1920, the counter-offensive developed into a general offensive of the Red Army’s Eastern Front.