"They dissolved the civilian High National Council" . "Unknown small number" . "Nguy\u1EC5n Kh\u00E1nhpolitical victory" . . . "December 1964" . . . "December 1964 South Vietnamese coup" . . . "December coup" . "deposed the High National Council" . . "None" . . "was prominent in shutting down" . . . "1964-12-19" . . "High National Councildissolved" . "military reassuming control of the government and dissolving the Council" . "High National Council" . . . . . . "other civilian politicians" . "December 1964 South Vietnamese coup" . . "military coup" . "Army of the Republic of Vietnam(ARVN)" . .