June 13, 2010
First lady Michelle Obama, right, shakes hands with Marine Corps Lt. General Joseph Dunford, left, before a a speech at Camp Pendleton Marine Corps Base in San Diego Sunday, June 13, 2010. (AP Photo/Denis Poroy)
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CAMP PENDLETON, Calif. -- First lady Michelle Obama is launching a national challenge for every American to find ways to make life easier for the families of U.S. troops.