WASHINGTON (Reuters) - The U.S. Navy hopes to save money and time by leveraging industry investments as it replaces its Ohio-class nuclear-armed submarines with the Virginia-class attack submarines ...

North Korea unveiled for the first time a nuclear-powered submarine under construction, a weapons system that can pose a major security threat to South Korea and the U.S. State media on Saturday ...

Infrastructure work to support rotations of U.S. and British nuclear-powered submarines began last month at a naval base in Western Australia, according to that nation’s defense department. HMAS ...