Sgt. Joshua J. Clark, from Elkhart, Ind., with the 591st Engineer Company (Sappers), provides over watch security for Air Force Explosive Ordinance Disposal personnel outside an Afghan Border Police checkpoint near the Afghanistan-Pakistan border April 1, 2013 in Spin Boldak district, Kandahar province, Afghanistan. (U.S. Army photo by Staff Sgt. Shane Hamann, 102nd Mobile Public Affairs Detachment)