Iran must make a first step towards improving relations with countries in the region and the United States by making it clear ...

The United States is estimated to have spent more than $400 billion on the kinds of antimissile goals that the president now ...

Military elimination of a nuclear enterprise requires military defeat and, optimally, occupation of the nuclear aspiring ...

US President stresses in interview with Sean Hannity of Fox News that Iran cannot have a nuclear weapon, suggests a deal with ...

Donald Trump said a new deal with Iran would be "nice," but the country's foreign minister said it was "obviously not enough" ...

Nicole Grajewski is a Fellow in the Nuclear Policy Program at the Carnegie Endowment for International Peace and an Associate ...

Such defense systems are extremely costly” with “their effectiveness often being questionable,” one expert said.

IAEA chief Grossi urges diplomacy between US, Iran on nuclear issue; UN chief pushes Iran to renounce nuclear weapons ...

An executive order said the United States faced a “catastrophic threat” from advanced aerial weapons. But a defense system ...

Once China produced weapons-grade uranium, it assembled its first atomic bomb in as little as three to five weeks. Iran may ...

North Korea defended its right to maintain a nuclear weapons program at a United Nations disarmament conference held shortly ...

U.S. President Donald Trump spoke out on the concerns about Iran's nuclear program. Trump said he hopes the crisis can be ...