From left, outgoing Defense Secretary Robert Gates, President Barack Obama, and Joint Chiefs Chairman Adm. Mike Mullen, salute during an Armed Forces Farewell Tribute in honor of Gates, Thursday, June... more 
From left, outgoing Defense Secretary Robert Gates, President Barack Obama, and Joint Chiefs Chairman Adm. Mike Mullen, salute during an Armed Forces Farewell Tribute in honor of Gates, Thursday, June 30, 2011, at the Pentagon. (AP Photo/Pablo Martinez Monsivais) less 
1 / 1
Associated Press | Photo By Pablo Martinez Monsivais
Thu, Jun 30, 2011 1:09 PM EDT