 On 30 December 1998, Iraqi SA-6 missile sites fired 6 to 8 surface-to-air missiles at American military aircraft.USAF F-16s responded by bombing the sites.On 5 January 1999, four Iraqi MiG-25s crossed into the southern no-fly zone, sparking aerial combat with two USAF F-15 Eagles and two USN F-14 Tomcats.