The November 1963 assassination of President Ngo Dinh Diem in a military coup (with the tacit approval of the US) produced a period of political instability for the Saigon government.

General Dương Văn Minh became president, but was removed in January 1964 by General Nguyễn Khánh. General Kanh was subsequently ousted and exiled from South Vietnam in 1965.