the use of conventional weapons against Russia or its allies could justify a nuclear response. This change follows increasing concerns over the war in Ukraine, especially after the U.S. and the U ...

A single warhead can demolish a city center. A full-fledged nuclear war would threaten life as we know it. But with the right policies and safeguards, we can help protect against mistakes, accidents, ...

What would a “nuclear winter ... Earth’s atmosphere after the detonation of nuclear weapons predicted that more than five billion people could die from a war between the U.S. and Russia.

That came three days after the nuclear attack on Hiroshima, which killed 140,000 people. Japan surrendered days later, ending World War II and the country’s nearly half-century of aggression ...

It came three days after the nuclear attack on Hiroshima, which killed 140,000 people. Japan surrendered days later, ending the Second World War and the country's nearly half-century of ...

said on Sunday that a nuclear war with the North Atlantic Treaty Organization (NATO) almost began under President Joe Biden. More Contributor/Getty Images Medvedev's remarks come after the U.S. is ...