Gunnery Sgt. Kevin Vander Wiede, an accident investigation chief with Detachment 2, Headquarters Company, 4th Law Enforcement Battalion, gives a class on the components of an improvised explosive device to the Reserve Marines of 4th LE Bn., Force Headquarters Group, Marine Forces Reserve, during exercise Platinum Wolf 2016 at the Peacekeeping Training Operations Center South Base in Bujanovac, Serbia, May 10, 2016. The Marines joined six other partner nations including Bosnia, Bulgaria, Macedonia, Montenegro, Slovenia and Serbia to conduct peacekeeping operations and non-lethal weapons training over the course of two weeks. (U.S. Marine Corps photo by Sgt. Sara Graham)