May 24, 2013 2:46 p.m.
President Barack Obama’s speech Thursday at the National Defense University may turn out to be the most significant of his tenure. After four years of failing to make much progress toward closing Guantánamo, while increasingly relying on a drone war whose legality has often been questioned, Obama might have chosen to speak more cautiously in his NDU speech. Instead, he went much further, outlining a way out of this “perpetual war,” saying that “our democracy demands it.” Whether he can make good on this promise will very likely define his legacy. If he succeeds in doing so, the Nobel Peace Prize committee will be seen not as naïve, but as remarkably prescient, in its awarding of the Peace Prize to Obama in 2009.