A U.S. Air Force combat controller, 21st Special Tactics Squadron, loads a Polaris Razor all-terrain vehicle onto a C-130 Hercules on Hurlburt Field, Fla., April 22, 2015. Emerald Warrior is the Department of Defense's only irregular warfare exercise, allowing joint and combined partners to train together and prepare for real world contingency operations. (U.S. Air Force photo by Cory D. Payne/Released)