 Complete the following phrase:  A member of the Roman Catholic minority, Phát joined the French-backed Vietnamese National Army which became the ARVN after the Republic of Vietnam South Vietnam was established. After having been sent to the U.S. for further training in 1958, Phát returned home to head the Civil Guard, a paramilitary force then mostly used to protect the ruling family of President Ngô Đình Diệm, rather than to counteract the communist Việt Cộng insurgency. Later commanding the 2nd Division, he was known for his loyalty to Diệm, who favored fellow Catholics. In 1963, Diệm knew some of the generals were about to 