The 596th Bomb Squadron, 2d Bomb Wing flew what was then the longest combat mission in the history of military aviation at the start of Desert Storm in 1991. Seven B-52s flew a 35.4-hour mission on 16–17 January 1991 and, for the time in U.S. Air Force history, fired a devastating barrage of conventional Air Launched Cruise Missile (CALCMs). The official name of this mission was SENIOR Surprise, unofficially it was referred to as Secret Squirrel. The 2d Bomb Wing delivered one-fourth of all U.S. Air Force bombs during Desert Storm. The 2d Bomb Wing KC-135s and KC-10s provided more than 1,000 of the 13,700 coalition refueling missions.