Answer:
Until he was assassinated by a US-backed coup, Ng™ ?“nh Di?m was able to stay in power in South Vietnam due to the support of the United States. He was followed by D??ng V?n Minh, who was followed by Nguy?n Kh‡nh. They were followed by Nguy?n V?n Thi?u, who wasa followed by Tr?n V?n H??ng. Finally, D??ng V?n Minh came into power again, but eventually surrendered to the Communists.
Explanation: