US Marks Memorial Day to Honor War Dead
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President Barack Obama speaks at the Memorial Day Observance at the Memorial Amphitheater at Arlington National Cemetery, May 28, 2012.
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President Obama lowers his head during a wreath-laying cermony at the Tomb of the Unknowns in Arlington National Cemetery in Arlington, Virginia, May 28, 2012.
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General John Allen, the top U.S. commander in Afghanistan, salutes before he observes Memorial Day at ISAF headquarters in Kabul, Afghanistan, May 28, 2012.
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A member of the U.S. Army Old Guard pays his respects at the grave of U.S. Army Major Douglas Sloan, before placing a flag at one of the over 220,000 graves of fallen U.S. military service members buried at Arlington National Cemetery.