After the Bolsheviks seized power, both right and left-wing armies rallied against them, generating the Russian Civil War. To secure access to the dwindling food supply, in May 1918 Sovnarkom sent Stalin to Tsaritsyn to take charge of food procurement in southern Russia. Eager to prove himself as a commander, once there he took control of regional military operations. He befriended two military figures, Kliment Voroshilov and Semyon Budyonny, who would form the nucleus of his military and political support base. Believing that victory was assured by numerical superiority, he sent large numbers of Red Army troops into battle against the region's anti-Bolshevik White armies, resulting in heavy losses; Lenin was concerned by this costly tactic. In Tsaritsyn, Stalin commanded the local Cheka branch to execute suspected counter-revolutionaries, sometimes without trial and — in contravention of government orders — purged the military and food collection agencies of middle-class specialists, some of whom he also executed. His use of state violence and terror was at a greater scale than most Bolshevik leaders approved of; for instance, he ordered several villages to be torched to ensure compliance with his food procurement program.