WALK THE LINE U.S. Marines race through a confidence course during the field training exercise portion of Khaan Quest 2011 at Five Hills Training Area near Ulaanbaatar, Mongolia, Aug. 1, 2011. The annual exercise is co-sponsored by the Mongolian armed forces and U.S. Pacific Command to strengthen the capabilities of the U.S. and Mongolian militaries. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 296662-H-GVS11-613.jpg Photo Gallery