 In response, U.S. Air Force (USAF) F-15Es, F-16CJs, and U.S. Marine Corps (USMC) EA-6Bs launched anti-radiation missiles and dropped precision guided munitions (PGMs) on the SA-3 ground-based missile site that fired on the ONW aircraft, and destroyed it.From December 1998 to March 1999, U.S. aircraft over northern Iraq came under almost daily fire from Iraqi surface-to-air missile sites and anti-aircraft guns.U.S.