MOSCOW, Feb 13 (Reuters) - Senior Russian officials have challenged the viability of U.S. proposals to build a nuclear power ...

The West should sanction Rosatom and Russian officials and their relatives in the EU and the US, Zelenskyy has said in Munich ...

The Russian-held Zaporizhzhia nuclear power plant in southeastern Ukraine is operating on its sole remaining outside power ...

Iran on Thursday held military drills with Russia amid escalating tensions with the United States, after President Trump gave ...

President Donald Trump has come under withering criticism for allowing the Obama-era New START nuclear pact with Russia to expire. But he was right to do so. Instead of preserving antiquated limits, ...

US warns Iran to reach a deal or face strikes as Tehran and Moscow announce joint naval exercises in the Sea of Oman.

The Kremlin says Russian and U.S. negotiators have discussed the expiration of their last remaining nuclear arms pact ...

Moscow reiterates willingness to adhere to expired nuclear weapons treaty, "as long as the United States does not exceed the ...

Russia's top diplomat says that Moscow will observe the limits of the last nuclear arms pact with the United States that ...

Iran has been joined by Russia and China in deploying naval vessels for a joint live-fire exercise in the Strait of Hormuz, ...

For the first time in over 50 years, there are no nuclear arms controls in place between the world’s two largest nuclear powers, the US and Russia.

Russia has repeatedly struck Ukraine's energy infrastructure, risking a nuclear disaster.