As a private, he fought in the Caucasus campaign, where he was injured. He was awarded two Crosses of St. George for bravery. After graduating from the school of warrant officers in Gori, he was sent to the Western Front. He rose to the rank of second lieutenant, and took command of a company. In the summer of 1917, he volunteered for the Death Shock Battalion, where the October Revolution found him. At the end of 1917, having barely escaped reprisals by the revolutionary Bolshevik soldiers, he returned to his homeland.