A Russian serviceman guards an area of the Zaporizhzhia Nuclear Power Station in territory under Russian military control, 1 ...

Drones have the potential to enhance nuclear deterrence, but they also introduce significant risks in terms of escalation control and first-strike stability.

Khamenei’s remarks upend months of signals from Tehran to the United States that it wanted to negotiate over its rapidly ...

Ayatollah Ali Khamenei suggested that “there should be no negotiations with such a government,” but stopped short of issuing ...

President Trump’s desire to engage in negotiations is a turnabout from his first term, when he often derided former President ...

President Trump’s blueprints to build a space-based missile defense shield could help him push for cuts in atomic weapons arsenals with Russia and other nuclear powers.

Iran is preparing to develop a nuclear weapon within months, according to US intelligence. A top group of Iranian scientists ...