NATO is by common consensus the most successful political-military alliance in modern history. It has lasted longer than almost all others, incorporates more members, and it achieved its central purpose(s) without firing a shot. After the Cold War ended, it managed to redefine itself by taking on a broader array of security missions and has played a modest but useful role in the war in Afghanistan. By surviving well beyond the demise of the Soviet Union, it has also defied realist predictions that its days (or at least its years) were numbered.
Nonetheless, I share William Pfaff's view that NATO doesn't have much of a future.
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