Top U.S. nuclear official accuses China of conducting a secret nuclear test in 2020 and confirms plans to restart U.S. nuclear testing, citing a need to match covert detonations by Beijing and Moscow.

The US accused China Friday of conducting a secret nuclear test in 2020 as it called for a new arms control treaty that would ...

The accusations at a global disarmament conference highlighted serious tension between Washington and Beijing at a pivotal moment in nuclear arms control.

The new U.S. accusations about China's nuclear weapons development come at a very turbulent moment for nuclear arms control globally.

Without the treaty there are no caps on the two largest atomic arsenals for the first time in more than a half-century.

Successive administrations, both Democratic and Republican, went about it in the same basic way: signing deals with Russia ...

If nothing replaces the New START nuclear arms treaty, security analysts see a more dangerous environment with a higher risk ...

Russia’s Permanent Representative to the UN Geneva office and other Geneva-based international organizations Gennady Gatilov said that Moscow will pursue an approach to the issue of strategic offensiv ...

Vladimir Alekseyev has been under the EU sanctions for orchestrating the novichok poisoning attack in Salisbury in 2018 that ...

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

No such official invitation has been received from the US administration or US officials, Gennady Gatilov emphasized ...