On April 25 – 26, the 5th Army defeated two German infantry divisions, capturing 2 batteries, 20 machine guns and two aircraft.
However, under the onslaught of the superior forces of the enemy, Lugansk was abandoned on April 28, and the 5th Army withdrew to Millerovo and Tsaritsyn, taking with them families of workers, valuable industrial equipment, military property, 100 locomotives and more than 3,000 wagons.
By order of the North Caucasian Military District of June 23, 1918, the 5th and 3rd armies and the Tsaritsyn Front, as well as detachments formed by the population of Donetsk and Morozovsky district, were united in the Voroshilov Group, which from mid-July 1918 was the main force in the defense of Tsaritsyn.
It pursued the enemy along the Siberian railway line, took Tomsk (December 20, 1919), Krasnoyarsk (January 7, 1920) and waged battles in the Irkutsk region.
In May 1920, the army was transferred to the Assistant commander in chief of the armed Forces of the Republic of Siberia, and later became part of the East Siberian Military District.
The 5th Army was disbanded on September 6, 1922, and the troops transferred to the East Siberian Military District.
The division defended the border with Manchuria from its formation, and between 4 and 25 October took part in the Primorsky operation to defeat the Zemskaya Rat, the last remnants of the Whites in the Far East.
For distinction in battles during the liberation of Primorye and Vladivostok, the Revolutionary Military Council of the USSR, by order of July 1, 1923, awarded the 5th Army the honorary title of the Red Banner.
[4] In June 1924 the army was disbanded, and its units and institutions were transferred to the recruitment of the 18th and 19th Rifle Corps of the Siberian Military District.