President Barack Obama walks with Maj. Gen. Karl Horst, commander of the U.S. Army Military District of Washington, his wife Nancy, and first lady Michelle Obama before placing a wreath at the Tomb of the Unknowns on Memorial Day at Arlington National Cemetery, Monday, May 30, 2011.
Charles Dharapak / AP Photo
President Obama, with Maj. Gen. Karl Horst, commander of the U.S. Army Military District of Washington, left, places a wreath at the Tomb of the Unknowns during a Memorial Day ceremony at Arlington National Cemetery, Monday, May 30, 2011.
Charles Dharapak / AP Photo
Tiffany Sanders of Bethel Park sits next to the grave of her grandfather Charles W. Ligo, an Army veteran who served in Korea, in the National Cemetery of the Alleghenies Sunday, May 29, 2011.
Gene J. Puskar / AP Photo
President Obama speaks as (L-R) Secretary of Defense Robert Gates, Army Chief of Staff Gen. Martin Dempsey, Navy Admiral James "Sandy" Winnefeld, and Army Gen. Ray Odierno listen during an event of Department of Defense personnel announcements at the Rose Garden of the White House May 30, 2011 in Washington, D.C. Obama has named Dempsey to be the new chairman of the Joint Chiefs of Staff, Winnefeld to be the new vice chairman of the JCS, and Odierno to replace Dempsey as Army Chief of Staff.
Alex Wong / Getty Images
U.S. soldiers holds candles to mark the Memorial Day at the U.S. Army Corps of Engineers' headquarters in Kabul, Afghanistan on Sunday, May 29, 2011.
Musadeq Sadeq / AP Photo
A boy holds up at American flag in the crowded amphitheater of Arlington National Cemetery as all await the arrival of President Obama to speak at a Memorial Day ceremony in Arlington,Va. Monday, May 30, 2011.
Jacquelyn Martin / AP Photo
A teacher at Lady's Island Intermediate School organizes a group of fifth grade students on how to place American flags near graves at the Beaufort National Cemetery May 27, 2011 in Beaufort, South Carolina. The students helped the historic cemetery prepare for it's Memorial Day event by placing over 7,500 flags at the graves of veterans dating back to the civil war.
Stephen Morton / Getty Images
