President Trump pressed the Iranian government to reach a deal on its nuclear program as he weighs possible military action against the country.

A U.S. official focusing on arms control has provided what he called new, declassified details of a Chinese underground nuclear test nearly six years ago.

President Donald Trump warned lawmakers and Americans about Iran's "sinister ambitions" for its nuclear program during his State of the Union speech.

During his State of the Union address, Trump indicated he was considering attacking Iran if it refused to give up its nuclear program and effort to build long range missiles.

The post Iranian president reiterates Iran’s opposition to building nuclear weapons — state TV appeared first on The Times of Israel.

As the Department of Defense pushes for greater AI integration, researchers said the top models chose the nuclear option in nearly all war simulations.

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

MOSCOW, Feb 24 (Reuters) - Russia accused Ukraine on Tuesday of trying to obtain a nuclear weapon with help from Britain and France, an allegation Kyiv called an absurd lie. A French foreign ministry spokesperson said the allegation was "blatant disinformation".