Secretary of Defense Robert M. Gates speaks to U.S. and Korean troops. Secretary of Defense Robert M. Gates speaks to U.S. and Korean troops from the 1st Heavy Brigade Combat Team and 210 Fires Brigade at Camp Casey, South Korea, on July 20, 2010. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 395375-N-LMN98-388.jpg Photo Gallery