Aircrew from Dyess Air Force Base, Texas, use MK-3 signaling mirrors to communicate their location to a C-130J as it flies overhead Jan. 15, 2015, at Fort Polk, La. After signaling the aircraft, it dropped essentials for surviving in the wilderness such as MRE’s, water and communication equipment. (U.S. Air Force photo/Senior Airman Cliffton Dolezal)