The Soviet Union's Typhoon-class was the largest submarine ever built, a 48,000-ton nuclear-powered behemoth made famous by "The Hunt for Red October." Designed to operate under Arctic ice, it carried ...

The United States, the United Kingdom, and France are preparing the next generation of atomic submarines, while China continues to expand its fleets and India has joined the countries that have them.

Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology. She joined ...