The unmanned underwater vehicle was developed to bypass missile defense systems and deliver a nuclear warhead against coastal targets and even aircraft carrier strike groups.

Russia claims to have successfully tested the Poseidon nuclear-powered underwater drone. Here’s what we know, what remains ...

Touting new weapons tests, Moscow signals to Washington that it must contend with the Kremlin’s power and negotiate.

Poseidon is part of Russia’s line up of “super weapons” meant to gain military parity with the West and it can supposedly drown coastal cities.

Earlier, during a meeting with special military operation veterans Russian President Vladimir Putin announced that Russia had successfully tested the Poseidon nuclear-powered underwater vehicle ...

BUSAN, South Korea -- President Donald Trump appeared to suggest the U.S. will resume testing nuclear weapons for the first ...

President Donald Trump on Thursday morning said he directed the Pentagon to begin testing nuclear weapons “on an equal basis” with Russia and China, an apparent attempt to flex the United States’ ...

This week alone, the Russian president unveiled two nuclear-capable weapons - but their value may be more symbolic than ...

The U.S. military regularly tests its missiles that are capable of delivering a nuclear warhead, but it has not detonated the ...