KORENGAL VALLEY U.S. Navy Adm. Mike Mullen, left, chairman of the Joint Chiefs of Staff, receives a briefing from U.S. Army Capt. Dan Kearny on the situation at Korengal Valley, Afghanistan, July 11, 2008. Mullen conducted a six-day tour of the region to visit troops and host a visit by professional athletes through the United Service Organizations. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 743997-D-DCN98-905.jpg Photo Gallery