The Presidential Guard (Vietnamese: Lữ đoàn Liên binh phòng vệ Tổng Thống Phủ) was a military unit of the Army of the Republic of Vietnam (ARVN) that was assigned to personally protect the President of the Republic of Vietnam, the nation-state that existed from 1955 to 1975. This force formed the bulwark of defences against continual coups, preventing previous coups against Ngo Dinh Diem, and would be maintained to prevent further coups in the wake of political instability following it.