F-4D, ROKAF 1969

MDD F-4D Phantom II, 110th TFS, 11th TFW, Republic of Korea Air Force, Taegu, from beginning 1969

After some hard negotiating during 1968, ROKAF was given 18 F-4D aircraft in return for agreeing to transfer 36 on-loan F-5A/B aircraft (which ROKAF did not greatly appreciate in any case) to RVNAF. These aircraft were used by 110 Tactical Fighter Squadron, and supplemented by further deliveries over the years, remained in service with 110 and 151 TFS, 11th TFW until 2010. They retained their SEA camouflage at least into the 1980s.

Serial numbers were simply based on the USAF serials, with the initial '6' removed - so the first aircraft delivered, USAF 64-0931, became ROKAF 40-931 and so forth.

To the best of my knowledge, they did not participate in the Vietnam War, although given the Republic of Korea's considerable contribution to supporting South Vietnam, it is a reasonable what-if...