Kim Jong Un unveils a new 8,700-ton nuclear-powered submarine, escalating tensions in the Pacific. Learn how this stealth ...

North Korea state media photos showed a largely completed nuclear-powered submarine hull as leader Kim Jong Un condemned ...

North Korea displayed apparent progress in the construction of a nuclear-powered submarine, with state media photos showing a ...

North Korea released new images showing apparent progress on a nuclear-powered submarine as Kim Jong Un criticized South ...

New photos show North Korea's apparent progress in the development of a nuclear-powered submarine as Kim Jong Un condemns ...

A nuclear-powered submarine was one item on a wish list of sophisticated weaponry that Kim Jong-un announced during a ...

Nuclear-powered submarines should be viewed as an industrial, technology and energy strategy before they are treated as a ...

A former Navy lieutenant commander and defense industry executive who was indicted for illegally leaking submarine design ...

North Korean leader Kim Jong Un observed construction of a submarine with his daughter, a potential heir, and oversaw the ...

North Korea on Thursday released new images of what it claims is its first nuclear-powered submarine, a massive vessel equal ...