VOLUNTEERS AT WORK U.S. Defense Secretary Robert M. Gates, right, talks with volunteers for wounded servicemen and women during the White House-sponsored "United We Serve" event at the Mologne House on Walter Reed Army Medical Center in Washington, D.C., June 22, 2009. SHARE: Download: Full Size (0.08 MB) Credit: VIRIN: 733427-E-CFN51-349.jpg Photo Gallery