Nuclear Weapons

Vulnerable countries will look to the lessons from Ukraine as they consider keeping or pursuing nuclear weapons, security...

A Swedish arms watchdog says the world’s stockpiles of nuclear weapons are expected to increase in coming years.

U.S., South Korean and Japanese officials have said North Korea could soon conduct its first nuclear test in nearly five...

Kim expressed “firm will” to continue developing his nuclear-armed military.

For U.S. officials and world leaders, discussions of how to respond to a limited nuclear attack are no longer theoretical.

Russia’s invasion of Ukraine “highlights the harsh road toward achieving a world without nuclear weapons,” said Japan's PM.

Ukraine is not a NATO member, but several of its neighbors, including Poland, Slovakia, Hungary and Romania, are.

The Navy uses animals like dolphins and sea lions to protect ships from divers and mines through the U.S. Navy Marine Mammal...

Even if Russia was completely defeated in a nuclear war, it's not.

The prospect of a nuclear exchange between Russia and the U.S. seemed, until recently, to have ended with the Cold War.