Defense Secretary Robert M. Gates and Deputy Defense Secretary William J. Lynn III leave Gates' office for a final time together at the Pentagon, June 30, 2011. Defense Secretary Robert M. Gates and Deputy Defense Secretary William J. Lynn III leave Gates' office for a final time together at the Pentagon, June 30, 2011. SHARE: Download: Full Size (5.87 MB) Tags: Photo Essays Credit: VIRIN: 758760-X-BBW65-171.jpg Photo Gallery