sentences:  Within six years of enlisting in the military, Đính had risen to the rank of colonel and was made the inaugural commander of the newly formed 32nd Division based in Da Nang in the centre of the country on January 1, 1955.Đính led the unit until November 1956, during which time it was renamed the 2nd Division.Diệm deposed head of state Bảo Đại in a fraudulent referendum in 1955 and proclaimed himself president of the newly created Republic of Vietnam, commonly known as South Vietnam.