U.S. Army Sgt. Jackenson Jean, standing, instructs a Ukrainian soldier during a class on individual movement techniques at the International Peacekeeping and Security Center near Yavoriv, Ukraine, March 5, 2016. Jean is a combat engineer assigned to the 3rd Infantry Division’s 3rd Battalion, 15th Infantry Regiment, 2nd Infantry Brigade Combat Team. Army photo by Staff Sgt. Adriana M. Diaz-Brown