sentences:  Among the casualties in the latter operation was Kornilov, leaving General Anton Denikin to assume command of the Volunteer Army.In early May this so-called “Icy March” ended when the Volunteer Army returned to the Don Cossack Host, which by then was experiencing widespread revolts against Soviet occupation.The anticommunist insurrection in the Don began in early April 1918 amid Cossack and peasant furor against Bolshevik food-requisitioning detachments.