1972 in the Vietnam War 1972 in the Vietnam War 1972 in the Vietnam War saw foreign involvement in South Vietnam slowly declining. Two allies, New Zealand and Thailand, which had contributed a small military contingent, left South Vietnam this year. The United States continued to participate in combat, primarily with air power to assist the South Vietnamese army, while negotiators in Paris tried to hammer out a peace agreement and withdrawal strategy for the United States. One American operation that was declassified years after the war was Operation Thunderhead, a secret mission that attempted to rescue POWs. U.S. military personnel in South Vietnam numbered
Treaty of Niš (1739) 1737 on the Russian side, but was forced to make peace with Ottomans at the separate Treaty of Belgrade, surrendering Northern Serbia, Northern Bosnia and Oltenia, and allowing the Ottomans to resist the Russian push toward Constantinople. In return, the Sultan acknowledged the Habsburg Emperor as the official protector of all Ottoman Christian subjects ("see Ottoman millet"), a position also claimed by Russia. The Austrian peace treaty compelled Russia to accept peace at Niš, ending the war with a partial Russian victory. Treaty of Niš (1739) The Treaty of Niš was a peace treaty signed on 3 October 1739 in