McDonnell Douglas F/A-18 Hornet fighter aircraft have flown in Australian service since 1984. In 1981, 75 "A" and "B" variants of the F/A-18 were purchased for the Royal Australian Air Force to replace Dassault Mirage III fighters. Hornets were part of the Australian contribution to the 2003 invasion of Iraq, flying patrols and close air support sorties to assist coalition ground forces. They provided security for the American air base at Diego Garcia in late 2001 and early 2002, in addition to their domestic protection duties. Between 2015 and 2017 Hornets were deployed to the Middle East and struck Islamic State targets as part of Operation Okra. Hornets are now at risk of being outclassed by other fighters and air-defence systems, and will leave Australian service entirely in the early 2020s. Four Hornets have been destroyed in flying accidents, two were transferred to Canada in 2019 and several others have been retired. (Full article...)