The F-4 Phantom II was designed to perform three tactical air roles, namely, air superiority, interdiction and close air support. It inherited many features of the F-4E, including the ability to pass real-time target information to its missiles prior to launch. Its increased weight and more demanding sink rates required a sturdier landing gear and modifications to the inner wings. It was well known, and feared, during Operation Desert Storm, where it was used to detect, identify, and locate enemy radars. The main armament of the F-4 Phantom II included Maverick (AGM-65) and HARM (AGM-88) missiles, plus 500 lb. Mk.82 or CBU-52 cluster bombs. After a good run, the F-4 Phantom II is now retired and has since been replaced by the F-16 Fighting Falcon.