Guatemalan marines conduct water assault training under the supervision of U.S. Marines March 9, 2016, Guatemala, as a part of a U.S. Security Cooperation Team. The Guatemalan marines completed a final exercise before their graduation, testing skills they learned during the four-week training course, which taught them how to more effectively combat drug trafficking criminal organizations. (U.S. Air Force photo by Staff Sgt. Westin Warburton/RELEASED)