 Complete the following phrase:  By the end of the Civil and PolishSoviet Wars, Timoshenko had become the commander of the Red Army cavalry forces. Thereafter, under Stalin, he became Red Army commander in Byelorussia 1933; in Kiev 1935; in the northern Caucasus and then Kharkov 1937; and Kiev again 1938. In 1939, he was given command of the entire western border region and led the Ukrainian Front during the 