On February 5, a treaty capping the numbers of deployed Russian and US nuclear warheads will expire, marking the first time ...

U.S. President Donald Trump indicated he would allow the last U.S.-Russia strategic arms control treaty to expire without ...

Even at the height of their Cold War nuclear rivalry, the United States and the Soviet Union thrashed out a series of ...

For the first time in years, the Kremlin has officially claimed to have tested one of its so-called "super weapons" — the nuclear-powered Burevestnik cruise missile — one of six “next-generation” ...

Ukrainians recall their country giving up nuclear weapons in 1994 in exchange for international security promises that weren't kept. They don't want a repeat in their current negotiations with Russia.

With doomsday nuclear weapons the last remnant of Russia's superpower status, President Vladimir Putin is stepping up threats to use them against Western powers aiding Ukraine. (Photo by Alexander ...

The new nuclear race has begun. But unlike during the Cold War, the U.S. must prepare for two peer rivals rather than one—at a time when it has lost its clear industrial and economic edge. China, ...

As Russia threatens atomic attacks on Ukraine and its Western allies, and prototypes a nuclear-armed spacecraft, space powers across Europe are racing to defend against nuclear strikes in orbit.