U.S. Air Force F-16 Fighting Falcons line up for an elephant walk at Kunsan Air Base, Republic of Korea, Aug. 22, 2017. The F-16 is a multi-role fighter aircraft, capable of close air support for ground forces and dominating enemy air assets in air-to-air combat. The elephant walk was a part of a regularly-scheduled operational readiness exercise, Beverly Pack 17-3, which tested the base’s ability to respond to various scenarios in a contingency environment. (U.S. Air Force photo by Senior Airman Colby L. Hardin/Released)