A summit hosted by the Obama administration one year ago has spurred momentum on global nuclear security measures. But the United States must lead efforts to redouble commitments on preventing the proliferation of nuclear materials, writes CFR's Emma Belcher.
As nuclear talks between Iran and major powers resume, the moment is ripe for a U.S.-led diplomatic offensive, backed by economic incentives, to persuade Iran to abandon its uranium enrichment program, says CFR's Matthew Fuhrmann.
As NATO prepares for this weekend's summit, the U.S. should consider removing its nuclear weapons from Europe, as its tactical nuclear umbrella over NATO is no longer vital to European security. Russia also should limit its nuclear arsenal, says CFR's Micah Zenko.
Micah Zenko argues that controlling U.S. and Russian supplies of tactical nuclear weapons would reduce the potential for nuclear terrorism, decrease the perceived threat to U.S. allies, and maintain momentum toward President Obama's goal of a world without nuclear weapons.
In the gap between Washington's and Jerusalem's views of Iran lies the question: who, if anyone, will stop Iran before it goes nuclear, and how? As Washington and Jerusalem study each other intensely, here's an inside look at the strategic calculations on both sides--and at how, if things remain on the current course, an Israeli air strike will unfold.