The number of nuclear warheads in the world has come down significantly from a high of 64,000 in the 1980s, but more nations now have the bomb.

The nation’s ascent from a rogue state to a full-fledged atomic power means it may soon have a globally relevant deterrent.

The NPT is essentially a bargain struck in the late 1960s between the states that had nuclear weapons and those that did not.

"The Vatican was the first nation-state to sign and ratify the TPNW, the bishops said. "We will be there to help witness its ...

With top diplomats gathered at UN Headquarters to review the 1970 Treaty on the Non-Proliferation of Nuclear Weapons (NPT), ...

Kim Jong Un is pushing for rapid advances, with the country’s main nuclear site showing increased activity.

China has called for Japan to be prevented from acquiring nuclear weapons at a nuclear disarmament conference currently ...

President Trump’s attack on Iran and his proposal to resume U.S. nuclear weapons testing has jolted Americans back to a darker era of Cold War brinkmanship, when impulsive decisions could push the ...

He ran for president three times on that principle. As commander in chief, he has ordered two complex military operations ...

When a leader threatens the destruction of an entire civilisation, the greatest threat is not who might get nuclear weapons - ...