The U.S. Navy has reached a Cold War-era milestone in the Arctic, deploying two Virginia-class submarines beneath the polar ice cap for the 100th time since World War II.

Japan now operates five cutting-edge Taigei-class submarines, in addition to its 12 Soryu-class and 6 Oyashio-class vessels.

Here’s what you’ll learn when you read this story: For the first time, China has outstripped U.S. nuclear-powered submarine production. U.S. plans to shore up an aging submarine fleet are delayed.

BREMERTON, Wash. — The Navy officially has a new “backbone” of its submarine fleet that is bigger, faster, quieter, and has more endurance and firepower than the Vietnam War-era design it passed by in ...

A U.S. Navy fast-attack submarine is undergoing maintenance at an Australian base where a multinational force of nuclear-powered boats may be in position in just over a year, according to the ...

Add Yahoo as a preferred source to see more of our stories on Google. NEW LONDON, Conn. (WTNH) — A U.S. submarine sank an Iranian warship Tuesday night in the Indian Ocean, Defense Secretary Pete ...

China has ramped up its production of nuclear-powered submarines over the past five years to the point where it is launching subs faster than the United States, threatening to negate a sea-power ...