SADR CITY VISIT U.S. Navy Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, takes a walking tour of the Sadr City district of Baghdad, Iraq, July 7, 2008. Mullen is on a six-day tour of the region to visit troops and host a USO contingent including NFL All-Pros Drew Brees, quarterback of the New Orleans Saints, and Osi Umenyiora, defensive end for the New York Giants, as well as the Dallas Cowboy cheerleaders and former Marshall University football coach Jack Lengyel. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 692867-W-PNX10-291.jpg Photo Gallery