In November 1930, Lozovsky was sent to study at the Leningrad Armored Refresher Courses for Red Army commanders. After completing the course, he became a company commander of the 1st Separate Tank Battalion in the Ukrainian Military District. Transferred to the Far East in February 1934, Lozovsky became the assistant chief of the 2nd Mechanized Brigade's operations staff department. In November, he entered the Military Academy of Mechanization and Motorization of the Red Army, graduating in June 1939. Lozovsky then returned to the Far East, where he was appointed assistant chief of staff of the 9th Armored Motor Brigade, fighting in the Battles of Khalkhin Gol as part of the 1st Army Group.