Retired and current Service members present the 50th Anniversary Vietnam War Commemoration flag at the Langley Air Force Base, Va., commissary, Nov. 9, 2013. The ceremony was held to recognize the valor and sacrifice of Service members who served in the Vietnam War, and to present a new Department of Defense-sponsored Vietnam War 50th anniversary flag. (U.S. Air Force photo by Airman 1st Class Kimberly Nagle/Released)