The Territorial Defense (Serbian: Територијална Oдбрана, TO for short) was a component of the armed forces of the former Socialist Federal Republic of Yugoslavia that was the primary means of organized armed resistance against an enemy under the Constitution of Yugoslavia. The forces acted as a Home or National Guard which roughly corresponded to a military reserve force or an official governmental paramilitary. Similar to the US National Guard, each of the Yugoslav constituent republics had its own Territorial Defense military formations, to remain separate from the Yugoslav People's Army (JNA), which also maintained its own reserve forces and could take command of Territorial Defense in case of war. This would be done under the command of the Presidency of Yugoslavia as Supreme Commander