Pentagon chief Hagel makes 1st trip to Afghanistan - Article Photos 1/8

Defense Secretary Chuck Hagel walks with U.S. Marine General Joseph Dunford, commander of the International Security Force, upon Hagel's arrival near Camp Eggers in Kabul, Afghanistan, Friday, March 8, 2013. Hagel arrived in Afghanistan Friday for his first visit as Pentagon chief, saying that there are plenty of challenges ahead as NATO hands over the country's security to the Afghans. (AP Photo/Jason Reed, Pool)