The Nuclear Deal That Could Save NATO

Former U.S. NATO ambassador Ivo Daalder argues that the scramble to shore up Europe's conventional defense risks overlooking the continent's greatest security weakness: nuclear deterrence. Europe knows it can't fully trust Washington's guarantee anymore. But he lays out a middle path between dependence and nuclearization that would extend France's and the United Kingdom's nuclear umbrella—a course, he argues, that could even repair the transatlantic alliance.