Battlefield Airmen candidates, having just completed the Battlefield Airmen Training Group’s combat controller course of initial entry, perform flutter kicks in a creek Aug. 30, 2018 at Joint Base San Antonio-Medina Annex, Texas. The Battlefield Airmen Training Group’s mission is to select, train and mentor Airmen for global combat operations. (U.S. Air Force photo by Airman 1st Class Dillon Parker)