Vientiane Treaty on 30 April 1975, the Pathet Lao took over Laos 15 August 1975. Vientiane Treaty The Vientiane Treaty was a cease-fire agreement between the two warring Lao factions - the monarchial government of Laos and the communist Pathet Lao - signed in Vientiane (the capital of Laos), on February 21, 1973. The Vientiane Treaty was in some sense a corollary to the Paris Peace Accords, signed the month before, which had ended U.S. involvement in the Vietnam war. Just as the Paris Accords had mandated the withdrawal of all US forces in Vietnam, the Vientiane Treaty called for the removal
1972 in the Vietnam War mines off the coast of North Vietnam to prevent ship travel to and from the country. Operation Linebacker II began. Better known as the "Christmas bombings", 129 B-52s and smaller tactical aircraft struck at targets in North Vietnam, including around the city of Hanoi. North Vietnam shot down three B-52s. Military adviser Alexander Haig met with President Thieu in Saigon to deliver a letter from President Nixon. Nixon said it was his "irrevocable intention" to achieve a peace agreement with North Vietnam, preferably with the cooperation of South Vietnam, "but, if necessary, alone." He pledged continue military support to South