1964    Vietnam War: at a rally in Saigon, South Vietnamese Prime Minister Nguyen Khanh calls for expanding the war into North Vietnam.

1964    Vietnam War: A ''coup d'état'' replaces Duong Van Minh with General Nguyen Khanh as President of South Vietnam. A new constitution is established with aid from the U.S. Embassy.

1964    South Vietnamese Generals Lam Van Phat and Duong Van Duc fail in a coup attempt against General Nguyen Khanh.

1964    The South Vietnamese military junta of Nguyen Khanh dissolved the High National Council and arrested some of the members.

1971    Montagnard troops of South Vietnam revolt against the rule of Nguyen Khanh, killing 70 ethnic Vietnamese soldiers.