Submarine forces of the U.S. and South Korean navies discussed ways to improve combined operational capabilities.

As Russia made progress in revising its nuclear policy amid its war with Ukraine, North Korea vowed to never give up its own nuclear weapons despite demands from the West.

Russian Foreign Minister Sergei Lavrov said on Thursday that Moscow viewed the notion of "denuclearising" North Korea as a "closed issue" as it understood Pyongyang's logic of relying on nuclear weapons as the foundation of its defence.

The commentary stressed that North Korea will never surrender its nuclear weapons, claiming "any attempt against our nuclear weapons can never work." It warned the G7 "will have t

The powerful sister of North Korean leader Kim Jong Un has vowed to boost the country’s nuclear war capability and take other steps to protest the recent arrival of a U.S. nuclear-powered submarine in South Korea.