RAILWAY GUARD - U.S. Army Sgt 1st Class Roger Pennartz stands guard as his patrol searches a railway for weapons caches, Baghdad, Iraq, Aug. 14, 2008. The soldiers are assigned to the 2nd Platoon, Charlie Company, attached to the 10th Mountain Division. Combat patrols of local railways are conducted routinely to ensure that the railways can operate safely.U.S. Navy photo by Petty Officer 2nd Class Kelvin T. Surgener