Add Yahoo as a preferred source to see more of our stories on Google. The U.S. Navy has canceled a variant of its Razorback uncrewed underwater vehicle (UUV) designed to be launched and recovered via ...

Since 1991, Navy subs have launched scores of cruise missiles in combat, but the torpedo attack off Sri Lanka is a return to form after 80 years.

Defense Secretary Pete Hegseth calls Iranian warship sinking a message that 'gloves are off' as U.S. nuclear submarine ...

In the dark waters outside Alexandria in the early 1940s, a handful of Italian divers rode slow, unstable machines that looked more like plumbing projects than weapons. Their mission was to slip ...