Wild Weasel is a code name given by the United States Air Force (USAF) to an aircraft of any type equipped with anti-radiation missiles and tasked with the suppression of enemy air defenses (SEAD): destroying the radar and surface-to-air missile (SAM) installations of enemy air defense systems. The task of a Wild Weasel aircraft is to bait enemy anti-aircraft defenses into targeting it with their radars, whereupon the radar waves are traced back to their source, allowing the Weasel or its teammates to precisely target it for destruction.
An F-4G with WW payload; near to far: AGM-88 HARM, AGM-65 Maverick, ALQ-119 ECM pod, AGM-78 Standard ARM and AGM-45 Shrike, circa 1981.
Wild Weasel patch. The letters at the bottom stand for "You gotta be shitting me."
An F-16CJ of the 20th Fighter Wing.
A F-35A of the 461st Flight Test Squadron over the Mojave Desert
An anti-radiation missile (ARM) is a missile designed to detect and home in on an enemy radio emission source. Typically, these are designed for use against an enemy radar, although jammers and even radios used for communications can also be targeted in this manner.
HARM on a US Navy F/A-18C
ALARM under the wing of a Tornado