Army Sgt. James Cockrell a mortarman assigned to the Oklahoma Army National Guard’s Headquarters and Headquarters Company, 1st Battalion, 179th Infantry Regiment, observers a mortar live-fire exercise conducted by Ukraine’s 1st Airmobile Battalion, 79th Air Assault Brigade, at the Yavoriv Combat Training Center near Yavoriv, Ukraine, June 16, 2017. Army photo by Staff Sgt. Eric McDonough