By Joyce Lee and Jack Kim SEOUL, Feb 26 (Reuters) - North Korean leader Kim Jong Un said he would focus on expanding his ...

U.S. Secretary of State Marco Rubio warned that Iran's reluctance to discuss its intercontinental ballistic missiles was a "big, big problem." ...

When humans debate nuclear war, the conversation is shaped by history, trauma and the weight of Hiroshima and Nagasaki.

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

Iran has over decades developed an advanced and large-scale uranium enrichment programme. While enriched uranium can be used as fuel in power plants at various purity levels, at high levels it can be ...

Offering “peaceful coexistence or eternal confrontation,” North Korea’s leader said he would only restart talks if the U.S. ends “hostile” policies and accepts Pyongyang’s nuclear status.

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

President Trump has kept up a steady drumbeat of threats and built up U.S. troops in the region. Iran’s task is to give him a ...

President Donald Trump said that Iran's nuclear program was "obliterated" last summer, but he now says the U.S. may have to ...

The North Korean leader said that his country can get along well with the United States as long as Washington accepts it as a nuclear weapons state.