Though Kennedy provided support for South Vietnam throughout his tenure, Vietnam remained a secondary issue for the Kennedy administration until 1963. Kennedy increasingly soured on Diem, whose violent crackdown on Buddhist practices further galvanized opposition to his leadership. In August 1963, Henry Cabot Lodge, Jr. replaced Frederick Nolting as the U.S. ambassador to South Vietnam. Days after his arrival in South Vietnam, Lodge reported that several South Vietnamese generals sought the assent of the U.S. government to their plan of removing Diem from power. The Kennedy administration was split regarding not just the removal of Diem, but also their assessment of the military situation in South Vietnam and the proper U.S. role in the country. Without the full support of the U.S., General Dương Văn Minh (known as "Big Minh") called off the potential coup in South Vietnam. Big Minh again approached the U.S. about a coup, and administration official informed him that the U.S. would neither support or oppose the toppling of Diem. In November 1963, a junta of senior military officers executed Diem and his influential brother, Ngô Đình Nhu.