Scientists have been building nuclear weapons for more than 80 years, but crafting this technology remains a challenge.

If we hold onto nuclear weapons, most world cities face potential incineration within about an hour’s time. The resulting ...

China and Russia have a large advantage in theater-range non-strategic nuclear weapons, and the U.S. strategic ... Tailored deterrence remains a sound concept, but it must be adjusted to meet ...

Micah McCartney is a reporter for Newsweek based in Taipei, Taiwan. He covers U.S.-China relations, East Asian and Southeast Asian security issues, and cross-strait ties between China and Taiwan.

Indeed, the nations that possess nuclear weapons are neglecting their disarmament ... French President Emmanuel Macron announced his concept of expanding France’s nuclear deterrence power ...

The U.S. nuclear arsenal is aging, with the newest nuclear weapon in the arsenal more than 35 years old, while major adversaries are increasing their threats. The government must strengthen the ...

Talk of replacing the American nuclear umbrella over Europe with the small British and French nuclear armories is in the air, however vague and fanciful. By Steven Erlanger Reporting from Berlin ...

Colonel Chang Hsien-yi was a leading figure in Taiwan’s nuclear weapons project, a closely guarded secret between the 1960s and ‘80s, as Taipei raced to develop its first nuclear bomb to keep ...