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President Barack Obama disembarks from Marine One after arriving at Walter Reed National Military Medical Center.
Obama has occasionally visited service members wounded in the Afghanistan and Iraq wars. He visited the National Naval Medical Center in February and made a trip to Walter Reed Army Medical Center in June, before the center was renamed and moved to its current location.
Monday's visit comes as the U.S. enters its 10th year of war in Afghanistan.
Obama has announced plans to end the U.S. combat mission there by the end of 2014. Steps are also under way to bring all U.S. troops home from Iraq by the end of this year.