On May 4, 1917, Yegoryev, who enjoyed great confidence of the new authorities and as a "supporter of democratic reforms", was appointed commander of the 171st Infantry Division.
After LG Kornilov's speech, when many unreliable commanders lost their posts, Yegoryev was appointed commander of the 39th Army Corps on September 9, 1917, and was awarded the rank of Lieutenant-General.
After the October Revolution, he was elected as commander of the Special Army of the South-Western Front in December 1917.
From March to September 1918 he was the military leader of the Western Curtain.
[1] In 1920, he was a military expert with the Soviet delegation for the conclusion of the Tartu Peace Treaty, between the RSFSR and Finland and the Riga Peace Treaty with Poland.