Members of the 633rd Security Forces Emergency Services Team runs after finishing a water confidence evolution at Joint Base Langley-Eustis, Va., April 28, 2017. The team conducted water confidence training, completed a modified Marine Combat Fitness Test, a ruck march and weapons and tactics drills to develop a baseline for future candidates who want to join the EST. (U.S. Air Force photo/Senior Airman Derek Seifert)