In 1969, the Air Force closed Suffolk County Air Force Base and the NYANG relocated there. The 102d Air Refueling Squadron returned to Air Defense Command in 1972 and again became an air defense unit. The 102d was re-equipped with the F-102A Delta Dagger, which was being replaced in the active duty interceptor force by the F-106. The Mach-2 "Deuce", still a very potent interceptor, served with the 106th FIG until June 1975, when Aerospace Defense Command was reducing the USAF interceptor force as the threat of Soviet Bombers attacking the United States was deemed remote.