[1][39] A group composed of 4 squadrons of mounted scouts from the 42nd Regiment, 11th Siberian Rifle Division, was led by Pepelyaev in mid-September 1915.

Having crossed Transbaikalia, Pepelyayev's forces linked up with the Amur Cossacks of Grigory Semyonov in early September.

[citation needed] In December, Pepelyayev's forces resumed their high tempo advance, this time to the west.

[48][49][50] His greatest victory was the Capture of Perm, where some roughly 20,000[51][52]~ Red Army soldiers were taken prisoner on 25 December 1918[29][53][52][54][d] following its abandonment.

During the following months, his First Siberian Army suffered a series of setbacks and fell back on Tobolsk, where they were forced to make a last stand against the Bolsheviks.

[citation needed] Pepelyayev's conflict with Kolchak came to a head in mid-December 1919 when he issued threats to arrest the White admiral.

The remains of his army joined that of Vladimir Kappel and crossed the frozen Lake Baikal during the Great Siberian Ice March.

[citation needed] During his stint in Harbin, the former general was employed in menial jobs, including those of carpenter and taxi driver.

After abandoning the key settlement of Amga, Pepelyayev pressed on towards the Pacific in the hope of making a crossing to Sakhalin.

Lieutenant General Pepelyayev was tried by the Vladivostok military tribunal and sentenced to execution by firing squad.

In August 1937, during The Great Purges, he was again arrested, taken to Novosibirsk, tried on charges of having created a counter-revolutionary organization, sentenced to death on 7 December[56][57] and executed on 14 January 1938[e] as 'enemy of the people'.