James Traub, Foreign Policy (USA)
The Atlantic alliance, built to contain the Soviet Union in the aftermath of World War II, began to die when the Cold War ended. What kept it alive over the last three decades has been less strategic necessity than a convergence of values — the values of the liberal postwar order. Now, the senior partner of the alliance, the United States, has lost interest in those values. The alliance was already a corpse, but Donald Trump drove the last nail into its coffin when he decided this week to withdraw from the nuclear deal with Iran.