Secretary Gates delivers remarks during a military naturalization ceremony. Secretary of Defense Robert M. Gates delivers remarks during a military naturalization ceremony where 31 military members stood in front of family and friends in the Pentagon Courtyard and received their U.S. citizenship on Sept. 10, 2009. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 112877-Q-QOA22-512.jpg Photo Gallery