SPECIAL THANKS U.S. Defense Secretary Chuck Hagel, left, shakes hands with U.S. Army military policemen thanking them for their support during his trip to Kabul, Afghanistan, March 11, 2013. Hagel traveled to Afghanistan on his first trip as the 24th defense secretary to visit U.S. troops, NATO leaders and Afghan counterparts. SHARE IMAGE: Download Image: Full Size (0.07 MB) Photo By: VIRIN: 762918-Y-ESO66-067.jpg Photo Gallery