Fighter Wing Iowa ANG (IA) 124th Tactical Fighter Squadron, Des Moines Air National Guard Base, Des Moines Received A-7D in 1977 and A-7K in 1981.Converted to Block 42 F-16C/Ds in September 1993. 185th Tactical Fighter Group (1976) (HA) 174th Tactical Fighter Squadron, Sioux City Air National Guard Base, Sioux City Received A-7D in 1976 and A-7K in 1983. Converted to F-16C/Ds on March 16, 1992 138th Tactical Fighter Group Oklahoma ANG (TL/OK) 125th Tactical Fighter Squadron, Tulsa Air National Guard Base, Tulsa Received A-7D in 1981 and A-7K in 1983.Converted to Block 42 F-16C/Ds in October 1993. 140th Tactical Fighter Wing Colorado ANG (CO) 120th Tactical Fighter Squadron, Buckley Air Force Base, Aurora Received A-7D in 1974 and A-7K in 1983.Converted to Block 30 F-16C/Ds on March 15, 1992 150th Tactical Fighter Wing, New Mexico Air National Guard (NM) 188th Tactical Fighter Squadron, Kirtland Air Force Base, Albuquerque Received A-7D in 1974 Converted to Block 40 F-16C/Ds on 11 May 1992 156th Tactical Fighter Wing Puerto Rico ANG (PR) 198th Tactical Fighter Squadron, Muñiz Air National Guard Base, San Juan Received A-7D in 1975 and A-7K in 1983.Converted to Block 15 ADF (Air Defense) F-16A/Bs on March 16, 1992. 162d Tactical Fighter Group Arizona ANG (AZ) 152d Tactical Fighter Squadron, Tucson Air National Guard Base, Tucson Received A-7D in 1978, A-7K in 1983.Converted to Block 10/15 F-16A/Bs on May 29, 1986, upgraded to Block 42 F-16C/D in 1995. 195th Tactical Fighter Squadron, Tucson Air National Guard Base, Tucson Received A-7D and A-7K in 1983.Converted to Block 15 F-16A/Bs on March 16, 1992. 169th Tactical Fighter Group South Carolina ANG (SC) 157th Tactical Fighter Squadron, McEntire Joint National Guard Base, Columbia Received A-7D in 1975 and A-7K in 1982.Converted to F-16A/Bs in 1983. 192d Tactical Fighter Group Virginia ANG (VA) 149th Tactical Fighter Squadron, Richmond International Airport, Richmond Received A-7D in 1981 and A-7K in 1982.Converted to Block 30 F-16C/Ds on March 15, 1992. United States Navy The A-7 Corsair II made its initial military service and combat debut with the United States Navy in 1967 and, over time, became its most prolific user. It was gradually phased out in the 1980s with the introduction of its replacement, the McDonnell Douglas F/A-18 Hornet. Eventually the US Navy retired its last Corsair IIs in May 1991. Currently active-duty squadrons or units that were former A-7 operators VA-15 "Valions" (now VFA-15) VA-22 "Fighting