A C-17 Globemaster III, from Joint Base Lewis-McChord, Wash., releases flares above the Selah Airstrip over Yakima Training Center, Nov. 15, 2018. The aircraft-dispensed flares are used as infrared countermeasures designed to defeat heat-seeking, surface-to-air or air-to-air missiles. (U.S. Air Force photo by Senior Airman Tryphena Mayhugh)