Sgt. 1st Class Mark Patterson checks his men at Outpost Restrepo in Afghanistan, as documented in the new film Korengal. Outpost Films hide caption

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In his commencement address to the Military Academy at West Point Wednesday, President Obama condemned isolationism but spent more time outlining the hazards of intervention. Susan Walsh/AP hide caption

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A roadside bomb killed Lance Cpl. James Boelk, 24, while he was on foot patrol in Afghanistan, Oct. 15, 2010. The Darkhorse infantry rifleman was on his first combat deployment. Courtesy of the Boelk family hide caption

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Participants of the Diplomatic Culinary Partnership try different foods at the State Department in Washington during a gathering of the American Chef Corps, a network of chefs from across the U.S. Jewel Samad/AFP/Getty Images hide caption

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