In 1938, already a major-general, Vlasov acted as Soviet Military Advisor to Chiang Kai-Shek in China. In December 1939, he returned to Russia and was given command of a division. During the war with Germany he commanded in turn a tank corps and an army, taking part in the battle of Kiev and in the defense of Moscow. In March, 1942 he became Deputy Commander of the Volkhov Front. In mid-June of 1942, the Soviet forces operating on the Volkhov River were surrounded in the woods and marshes, without food and supplies, and by the end of the month surrendered to the Germans. General Vlasov became a prisoner of war.
I think Vlasov was not allowed any troops until late 1944 but I might be wrong:
In July, 1944 a sudden turn occurred. Himmler, always a great enemy of General Vlasov and the Liberation Army, finally came to the conclusion that in the critical situation of the Reich it was worth while to try a course of policy different from the official one that had so far prevailed.The meeting between General Vlasov and Himmler was to take place on July 21st. But this date almost coincided with the attempt on Hitler's life; the meeting therefore took place two months later, on September 16th. It resulted in Himmler's consent to the creation of a new committee, called KONR - Committee for the Liberation of the People's of Russia, and the KONR Army under General Vlasov's command.
To start with, 5 divisions were to be organized from among prisoners ....
http://www.feldgrau.com/rvol.html
