Pacific Air Forces (PACAF) at Clark Air Base, Philippines in 1973 with a training mission to provide dissimilar air combat training to PACAF fighter squadrons using Soviet-style fighter tactics. It was carried in non-operational status until the end of August 1975, by which time the 405th Fighter Wing had been replaced by the 3rd Tactical Fighter Wing at Clark. Even then, it did not start training activities until January 1976, using a number of Northrop T-38 Talon aircraft made surplus by the arrival of the Northrop F-5E Tiger IIs at Nellis Air Force Base, Nevada. Eventually, the squadron also received the F-5E, with some of the planes coming from stocks destined for the Republic of Vietnam Air Force but never delivered and an embargoed Ethiopian Air Force order. By that time it had been redesignated the 26th Tactical Fighter Training Squadron, and secondly as a Tactical Fighter Training and Aggressor Squadron. Eventually, it became the 26th Aggressor Squadron. The aggressor F-5Es were painted in a variety of colorful camouflage schemes designed to mimic those in use by Warsaw Pact aircraft. Two-digit Soviet-style nose codes were applied to most aggressor aircraft, and these coincided with the last two digits of the serial number. When there was duplication, three digits were used. Squadron was among the first to apply the star and bar in toned-down or stencil form. By the late 1980s, the aircraft were becoming worn out after years of high-performance fighter training, with some aircraft being grounded for structural failures. In addition, the F-5E no longer could provide the training as a new generation of Soviet aircraft were becoming operational. The 26th at Clark was scheduled to dispose of its F-5Es in favor of General Dynamics F-16 Fighting Falcon and move to Kadena Air Base, Okinawa, in October 1988. The unit was minimally manned at Kadena while the squadron awaited new aircraft, flying a few borrowed aircraft from the 18th Tactical Fighter Wing. However, in 1990, the decision was made to terminate the entire USAF aggressor program. The 26th AS was inactivated on 21 February 1990 before it could receive its own F-16s. Space aggressor unit Reactivated under Air Force Space Command in 2003 as the 26th Space Aggressor Squadron as part of the 310th Space Wing at Schriever Air Force Base, Colorado. In 2007 the unit was reassigned to the 926th Group at Nellis and was transferred to Air