1966, elements of the 503rd Parachute Infantry Regiment boarded the General John Pope at Oakland Army Base. Eighteen days later on 24 June 1966, the 503rd PIR disembarked at Vung Tau, South Vietnam. On 23 July 1966, elements of the 64th Transportation Company boarded the General John Pope, and departed from the Tacoma, Washington Outport Facility, arriving in Okinawa on 5 August 1966. Departing Okinawa the following day, she disembarked the 64th TC at Qui Nhon, South Vietnam on 10 August 1966. On 20 November 1966 the first elements of the 199th Light Infantry Brigade departed the Oakland Army Base on the General Daniel I. Sultan. Two days later, on 22 November 1966, the General John Pope departed Oakland Army Base with the second of two elements of the 199th Light Infantry Brigade, elements of the 1st and 2nd Brigades of the 9th Infantry Division, and the 58th Field Depot. On 12 December 1966, the 199th Light Infantry Brigade and 9th Infantry Division disembarked the General John Pope in Vung Tau, South Vietnam. Three days later, on 15 December 1966 the 58th Field Depot disembarked the General John Pope at Qui Nhon. In early January 1967, the General John Pope returned to San Francisco Bay. On 8 January 1967, she departed Oakland Army Base with the remaining elements of the 9th Infantry Division to South Vietnam, disembarking the units at Vung Tau on 30 January 1967. In April 1967, she transported the 589th Engineer Battalion to Qui Nhon from Oakland. On 7 July 1967, the General John Pope departed U.S. Naval Base San Diego, transporting elements of the U.S. Army 244th Aviation Company (aerial surveillance), elements of D Company, 2nd Battalion, 28th Infantry Regiment, and elements of the 3rd Battalion, 9th Marines. On 21 July 1967, she arrived in Okinawa to disembark partial elements of the 3rd Marine Regiment. She arrived at Vung Tau on 29 July 1967 to disembark the 244th Aviation Company and the 2nd Battalion, 28th Infantry Regiment. She sailed on to Da Nang to disembark remaining elements of the 3rd Marine Regiment. On 1 September 1967, she departed Oakland Army Base with elements of the 1st Battalion (Mechanized), 50th Infantry, reaching Okinawa on 18 September 1967. She departed Okinawa the following day and on 22 September 1967 disembarking the 1st Battalion, 50th Infantry at Qui Nhon. On 1 November 1967, the General John Pope again departed