three squadrons of C-130s performing rotational deployments to and from Clark, bringing back wounded personnel with aeromedical airlifts, the aircraft returning to South Vietnam filled with combat supplies and equipment. This mission continued until 31 December 1971 when the wing was inactivated as part of the Vietnam drawdown. The 774th Tactical Airlift Squadron remained assigned to the 405th, providing tactical airlift within the Southwest Pacific until 15 September 1972. Post-Vietnam era The 1st Test Squadron conducted weapons system evaluation (COMBAT SAGE) of repaired battle-damaged F-4 Phantom IIs from 30 April 1970 until the end of the Vietnam War. It remained assigned to the 405th until the wing's re-designation in September 1974. The 90th Tactical Fighter Squadron returned to Clark and the 405th on 15 December 1972 after being withdrawn from the 18th Tactical Fighter Wing at Nha Trang Air Base, South Vietnam as part of the Vietnam drawdown. Flew F-4E Phantom IIs also until the 405th's re-designation in September 1974. During July–August 1972, provided extensive flood relief to Philippine areas inundated by monsoon rains. During February–March 1973, provided medical, logistical, and administrative support for former prisoners of war, on their way to the United States from North Vietnam. With the end of the USAF presence in South Vietnam, the wing was re-designated as the 3d Tactical Fighter Wing in September 1974 to retain the history of the senior unit after its standdown as part of the closure of Bien Hoa AB. The 405th Fighter Wing also deployed an McDonnell F-4 Phantom II contingent in Tainan Air Base, Taiwan. Until July 1974, The main mission is to assist Taiwan’s air defense, as well as the use of tactical nuclear weapons. Tactical Training Wing On 25 August 1979, the 405th Tactical Training Wing was activated at Luke AFB, Arizona by Tactical Air Command to consolidate the F-15 Eagle Replacement Training Unit (RTU) operations. It took over the 425th, 461st 550th and 555th Tactical Fighter Training Squadrons from the 58th Tactical Training Wing. The F-15As were replaced by the much more capable F-15C in January 1981 which was being delivered to front-line USAF combat squadrons. With the upgrading to the F-15C, the lowest-hour F-15As were transferred to the 426th Tactical Fighter Training Squadron which converted from F-4 Phantom II. The 426th provided F-15A interceptor training specifically to support the TAC Air Defense Command (ADTAC) training mission inherited from the inactivated Aerospace Defense Command