In 1977, the Air Force sent the F-111F aircraft from Mountain Home to the 48th Tactical Fighter Wing at RAF Lakenheath, England, to modernize its European forces. In return, the 366th Fighter Wing, located in Mountain Home AFB, Idaho, received F-111A 'Aardvark' aircraft from Nellis AFB, Nevada, where they equipped the 389th and 391st Squadrons.