When U.S. commanders wanted to destroy remnants of the Islamic State who had regrouped in camps in Libya, they pulled out one of the biggest arrows in the U.S. quiver: the B-2 stealth bomber.

A pair of the radar-evading batwing bombers flew a 30-plus-hour round trip mission from their base in Missouri to deliver more than 100 bombs to wipe out the camps Wednesday night, killing an estimated 80 Islamic State terrorists.