President Trump and his European counterparts square off at the United Nations this week on key policy issues dividing old allies: the fate of the Iran nuclear agreement and how to constrain the Islamic Republic’s regional ambitions.
The week of marathon diplomacy in New York will be the first time that heads of states of the U.S., European nations and Iran gather at the General Assembly since Mr. Trump quit the 2015 Iran nuclear accord in May and will put U.S.-European divisions on global display.
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