U.S. Defense Secretary Robert M. Gates, right, speaks with United Kingdom Defense Minister Des Browne during a reception commemorating the 50th anniversary of the Mutual Defense Agreement between the United States and the U.K. at the State Department in Washington, D.C., July 9, 2008. U.S. Defense Secretary Robert M. Gates, right, speaks with United Kingdom Defense Minister Des Browne during a reception commemorating the 50th anniversary of the Mutual Defense Agreement between the United States and the U.K. at the State Department in Washington, D.C., July 9, 2008. SHARE: Download: Full Size (2.91 MB) Tags: Photo Essays Credit: VIRIN: 459545-X-WGM42-216.jpg Photo Gallery