Air Force Chief of Staff Gen. Mark A. Welsh III and his wife, Betty, attend a wreath-laying ceremony by President Barack Obama at the Tomb of the Unknowns in Arlington National Cemetery in observance of Veterans Day, Nov. 11, 2012. (U.S. Air Force photo/Scott M. Ash)

Senior leaders attend wreath-laying ceremony at Tomb of Unknowns

13 Nov 2012 |

WASHINGTON (AFNS) -- Air Force Chief of Staff Gen. Mark A. Welsh III and his wife, Betty, attend a wreath-laying ceremony by President Barack Obama at the Tomb of the Unknowns in Arlington National Cemetery in observance of Veterans Day, Nov. 11, 2012. (U.S. Air Force photo/Scott M. Ash)