F-105G and F-4G, Wild Weasels, plus WW patch
Wild Weasels are aircraft specifically modified to search for SAM (Surface to Air Missile) sites and destroy them so that the rest of the strike force can proceed safely through the area where those SAMs were located.
What a Wild Weasel pilot or crew does is simply to fly into SAM sites, let those sites get a lock on their aircraft, let them fire a missile at them so that the pilot or crew get a radar signature of where the SAM site is located and then proceed to destroy said sites.
So then you have to fly at tree-top level, to help mask your approach, you have to fly into enemy fire, while keeping an eye on potential air threats and while all of that is going on you have to effectively use the aircraft’s weapons systems.
Oh and they’re also the first to enter a battlefield and the last to leave.
They also sport a nice big pair of hairy testicles.
Fun fact I: The YGBSM acronym you see at the bottom of that WW patch refers to their unofficial motto. Apparently, once upon a time, a veteran B-52 EWO (Electronic Warfare Officer) was tasked with having to fly rear seat on a WW jet.
His exact words were:
"You want me to fly in the back of a little tiny fighter aircraft with a crazy fighter pilot who thinks he’s invincible, home in on a SAM site in North Vietnam, and shoot it before it shoots me, you gotta be shittin’ me!"
And thus the YGBSM (You Gotta Be Shittin’ Me), deal was born.
Fun fact II: After 45 days of operation, the first Wild Weasel squadron ever created (354th Tactical Fighter Squadron based at Takhli Royal Thai Air Base, Thailand), had one airplane left and of the 16 aircrew members, four had been killed, two were POW’s, three had been wounded and two had quit.
Fun fact III: During Desert Storm, A-10 Warthogs were used as bait for SAMs while F-4Gs acquired the radar sites’ signatures and proceeded to destroy them.