Sgt. Martin Belden, a non-lethal weapons instructor with 4th Law Enforcement Battalion, Force Headquarters Group, Marine Forces Reserve, sprays a Bosnian soldier with oleoresin capsicum, during a non-lethal weapons course at exercise Platinum Wolf 2016 aboard Peacekeeping Operations Training Center South Base in Bujanovac, Serbia, May 13, 2016. Seven countries including Bosnia, Bulgaria, Macedonia, Montenegro, Slovenia, Serbia, and the United States joined together to practice peacekeeping operations and improve their abilities to work together. (U.S. Marine Corps photo by Sgt. Sara Graham)