Wild Weasel is a code name given by the United States Armed Forces, specifically the US Air Force, to an aircraft, of any type, equipped with radar-seeking missiles and tasked with destroying the radars and SAM installations of enemy air defense systems. The Wild Weasel II version was the first unsuccessful attempt to use the F-4C as the Wild Weasel platform. When that effort failed, the Wild Weasel role was then passed to the F-105F in the summer of 1966. The F-105F was converted for the role and was designated Wild Weasel III. The F-105F was equipped with more advanced radar, jamming equipment, and a heavier armament. Anti-radiation missiles were outfitted that could seek out radar emplacements. The F-105F Wild Weasel airframes were eventually modified with improved countermeasures components in a standardized configuration and designated the F-105G. The F-105G was also designated Wild Weasel III; 61 F-105F units were upgraded to F-105G specifications. Although in some documentation the F-105F was referred to as an EF-105F, that designation never existed in the operational flying squadrons. (Source Wikipedia)