U.S. Army Gen. Frank Grass, Chief, National Guard Bureau, left and Brig. Gen. Christopher J. Petty, Commander of North Atlantic Treaty Organization (NATO) Headquarters Sarajevo, pose for a photo, Camp Butmir, Bosnia, July 23, 2014. Grass also met with U.S. Soldiers, Airmen and Marines supporting NATO Headquartes Sarajevo. (U.S. Air National Guard photo by Staff Sgt. Sarah Mattison)