 The aging F-111A fleet was retired in the early 1990s, which prompted the inactivation of the 391st Tactical Fighter Squadron in June 1990 and of the 389th Tactical Fighter Training Squadron in June 1991, their aircraft being sent to the 27th TFW at Cannon AFB, New Mexico, the last USAF active duty F-111 equipped wing.In early 1991, the Air Force announced that the 366th would become the Air Force's premier "air intervention" composite wing.The wing would grow from a single-squadron of EF-111As to a dynamic, five squadron wing with the ability to deploy rapidly and deliver integrated combat airpower.