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 Tartu (Russian–Estonian) Treaty of Tartu (Russian–Estonian) Tartu Peace Treaty (, literally "Tartu peace") or Treaty of Tartu is a peace treaty between Estonia and Soviet Russia signed on February 2, 1920 ending the Estonian War of Independence. The terms of the treaty stated that ""Russia unreservedly recognises"" the independence of the Republic of Estonia "de jure" and renounced in perpetuity all rights to the territory of Estonia. Ratifications of the treaty were exchanged in Moscow on March 30, 1920. It was registered in "League of Nations Treaty Series" on July 12, 1922. Estonia had been a province of Imperial Russia since 1710,