British nuclear Trident submarine missile launch fails and ‘plops’ into sea yards away ... The V-class is due to be replaced by the bigger Dreadnought-class submarines in the 2030s.

One of the British Royal Navy’s Astute-class nuclear-powered attack submarines moves through the water at the entrance to Holy Loch in Argyll and Bute, Scotland, Sept. 1, 2020.

After more than 25 years of searching, a veteran diver specializing in finding sunken ships has uncovered the location of the HMS Triumph, a World War II British submarine that disappeared in 1942 ...

Britain's BAE Systems and Australia's ASC Pty Ltd agreed Friday to a multibillion-dollar nuclear submarine deal. The deal includes $4.6 billion over 10 years from Australia to Britain's Rolls ...