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The Atlantic: What's NATO for, Anyway?
NY Times: AFTER THE ATTACKS: THE ALLIANCE; For First Time, NATO Invokes Joint Defense Pact With U.S.
CNN Money: These NATO countries are not spending their fair share on defense
Culture
Can NATO Survive Without The U.S.?
NATO's existence is threatened after president-elect Trump expressed skepticism about the group. So what if the U.S. left NATO?