They were designed to be used to support and reinforce the Militsiya, deal with large-scale crowd control, internal armed conflicts, prison security (except in Russia) and safeguarding of highly-important facilities (like nuclear power plants). As such, the force was and is involved in the various conflicts and violent disturbances in the history of the Soviet Union and modern Russia, including the Russian Civil War, World War II, mass repressions of Stalinist era, and the Chechen Wars. During wartime, the Internal Troops falls under armed forces military command and fulfill the missions of local defence and rear area security.