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In 1939, he commanded the 10th Army during the polish campaign.As of 1941, he was deputy commander of the Central and Byelorussian fronts and he commanded the 49th Army of the Soviet Union, playing a key role early on during the Battle of Moscow in late 1941.
It spent the rest of the war in Italy fighting in the Italian Campaign mainly under 10th Army but with short periods from February 1944 (Battle of Anzio) and January 1945 (Spring 1945 offensive in Italy) under 14th Army.