A U.S. Marine Corps Instructor from 2nd Low Altitude Air Defense Battalion (2nd LAAD) explains how to fire an FIM-92 Stinger missile. Members of the 2nd LAAD fire Stinger missiles at drone targets during training at Yuma Proving Ground in Arizona. 2nd LAAD uses Stinger surface-to-air missiles to provide close-in, low altitude air defense against enemy aircraft. The FIM-92 Stinger is an infrared homing surface-to-air missile (SAM), Man-Portable Air-Defense System (MANPADS). Filmed on March 27-28, 2015.