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Obama's peace prize speech explores the ethics of warfare: Echoes of Niebuhr

Nine days after announcing that he would send more troops to Afghanistan and set July 2011 as the start of a gradual withdrawal, President Barak Obama gave a similarly nuanced speech in accepting the Nobel Peace Prize.

Obama condemned religious-inspired violence, so-called holy wars, but also offered a defense of the just-war tradition in the face of “evil” in the world.