During the campaign, Trump disparaged the North Atlantic Treaty Organization (NATO), the 68-year-old alliance with Europe. NATO is often considered the most successful effort to counter the Soviet Union during the Cold War, and a foundation of Western unity. The members pledged collective defense, meaning an attack on one would be considered an attack against all. Trump had argued that NATO might be obsolete. Much of his criticism had to do with money. NATO’s goal was for each member nation eventually to spend 2 percent of its GDP on defense. The United States spent 3.5 percent of its GDP,
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