The debate over nuclear-powered submarines is likely to serve as a critical indicator of Japan’s strategic trajectory.

Modern nuclear forces increasingly rely on platforms built for a single, unforgiving task. Just as […] ...

North Korea said on Monday it fired long-range strategic cruise missiles into the sea to test the country’s nuclear deterrence, days after it showed apparent progress in the construction of its first ...

Add Yahoo as a preferred source to see more of our stories on Google. North Korea on Thursday released new state media images that suggest major progress on a nuclear-powered submarine program, a ...

North Korea on Thursday released new images of what it claims is its first nuclear-powered submarine, a massive vessel equal in size to some of the United States Navy’s attack subs. The pictures ...

In the final weeks of the war, the Navy hunted down and sank five German submarines in the North Atlantic. They stopped what ...