in the campaign “Suppression of UPA Resistance and Operation "Vistula" (1944–1951)”
Regular chekist-military operations by the NKVD and MGB to sweep western Ukrainian villages: the People's Commissar of Internal Affairs of the Ukrainian SSR T. Strokach personally "directed and coordinated operational-chekist operations to liquidate the underground of the Organization of Ukrainian Nationalists and units of the Ukrainian Insurgent Army, and mass deportations of the population in Western Ukraine"[1]. Already "on April 5, 1944, on the basis of a directive of the People's Commissariat of Internal Affairs of the USSR, a scheme of arrests and deportation of OUN–UPA members was worked out"[2].