U.S. President Obama and French President Francois Hollande

U.S. President Obama and French President Francois Hollande

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U.S. President Barack Obama, center, and French President Francois Hollande, left, listen to the playing of 'Taps' during a ceremony at the Normandy American Cemetery on the 70th anniversary of D-Day in Colleville-sur-Mer, France on June 6, 2014.