A senior United States official on Tuesday disclosed further details about a covert nuclear-related test allegedly carried out by China while stressing the U.S. cannot afford not to resume testing to ...

A senior State Department official on Tuesday said the U.S. still is assessing how to implement President Donald Trump's ...

President Donald Trump issued a directive in October to conduct nuclear weapons tests.

GENEVA (AP) — A U.S. official focusing on arms control on Monday provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago and urged countries to ...

GENEVA (AP) — A U.S. official on arms control revealed new, declassified information regarding a Chinese underground nuclear test that allegedly occurred nearly six years ago, urging global powers to ...

The United States is ready to carry out low-yield nuclear tests to match alleged secret explosions by China and Russia, ending a decades-old moratorium, a senior official said Tuesday. New START, the ...

The United States has not yet decided how it will resume nuclear testing, a senior official said Tuesday, after President ...

The 1996 Comprehensive Nuclear Test Ban Treaty (CTBT) has not yet entered into force due to the failure of eight key states, including the United States and China, to ratify it and Russia’s decision ...

The Navy admiral who ‌commands U.S. nuclear forces on Thursday endorsed a finding by the Energy Department and Pentagon that ...

This is read by an automated voice. Please report any issues or inconsistencies here. After the U.S.-Russia nuclear treaty expired, U.S. officials revealed declassified details of an alleged 2020 ...