In this image released by the U.S. Department of Defense, U.S. Defense Secretary Robert Gates, 6th right, standing, and U.S. Marine Gen. and chairman of the Joint Chiefs of Staff Peter Pace, 4th left, standing, take a group photo with soldiers of the 1st Infantry Division at Camp Victory, Baghdad, Iraq, Thursday, Dec. 21, 2006. Gates, in an unannounced trip to the battlefront, discussed a possible infusion of more U.S. troops into Iraq with American commanders, but said no decisions have been made. (AP Photo/Department of Defense, Cherie A. Thurlby)