Nguyễn Khánh
The coup was chiefly planned by the Vietnamese generals. Unlike the coup in 1960, the plotters of the 1963 coup knew how to gain broad support from other ARVN officer corps. They obtained the support of Generals Tôn Thất Định, General Đỗ Cao Trí, General Nguyễn Khánh, the III, II Corps and I Corps commanders. Only General Huỳnh Văn Cao of IV Corps remained loyal to Diệm.