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 the Triple Alliance from the mouth of the Apa River with the Paraguay River up to its mouth in Bahia Negra. A treaty of Peace, Commerce and Navigation was signed on December 13, 1873, between Paraguay and Uruguay. As with the Brazilian treaty, Paraguay recognized the expenses, damages and detriments of Uruguayan campaign. Both governments also committed to return all prisoners of war and reopen commerce on the rivers. A Treaty of Peace with Argentina was signed on February 3, 1876, between Paraguay and Argentina. In it, Paraguay recognized all war expenses as well as the damages and detriments caused to Argentine public