Former British Prime Minister Liz Truss feared that the Russian president would resort to nuclear weapons, per a biography.

International Atomic Energy Agency chief Rafael Grossi is set to visit Tehran on Wednesday for crucial talks on Iran's ...

A New York lawmaker who served as lead attorney for House Democrats during the first impeachment of President-elect Donald ...

When he takes office in January, President-elect Donald Trump will inherit a raft of national security challenges, including ...

Vladimir Putin was so close to using nuclear weapons in October 2022 that Liz Truss spent the dying days of her premiership ...

Yet too few of us make the connection that the most acute, immediate danger to our lives and climate still comes from nuclear ...

The IAEA says Iran has considerably increased its reserves of enriched uranium to 60 percent, close to the 90 percent needed to develop an atomic bomb.

It has made a powerful case for the “nuclear taboo,” the consensus that nations with nuclear weapons must never use them. The ...

Seoul has long accused the nuclear-armed North of sending weapons to help Moscow fight Kyiv and alleged that Pyongyang has ...

New nuclear-capable planes and upgrades to old equipment are coming. Will they deter warfare or lead to an arms race?

Mariano Grossi, director general of the International Atomic Energy Agency, will travel to Iran on Wednesday to meet for the ...