An unmanned U.S. Navy vessel successfully fired "lethal munitions" in international waters in the Middle East, officials announced Thursday, marking the first time such an exercise has been ...

Mark Patinkin: A German U-boat brought WWII to RI's doorstep. Now it lies on the ocean floor RI House has approved a controversial 'assault weapons' ban. Here's what happened.

The U.S. Navy is beginning to arm surface drone boats with guns, rockets and mobile missiles to overwhelm enemies with swarming attacks, protect sailors at farther stand-off ranges and coordinate ...

Little-remembered U-boats were some of the deadliest weapons of World War II, sinking 400 ships along the East Coast of the United States.

For the U.S. Navy, boats perform missions from mundane maintenance chores such as hull scraping and cleaning overboard ...

The U-Boat wolf packs were suffering heavy losses by late 1942—but briefly technology came to their rescue with the introduction of the Metox Radar Warning Receiver, which beeped when it ...

Since the scuttling of the U-boat fleet in Operation Deadlight by the Royal Navy at the conclusion of World War II, the world has paid little attention to German submarines.

Nazis built impenetrable submarine pens to protect U-boats from Allied attacks.

In the first years of war, the Germans used them to cut off supply lines that were bringing weapons and equipment from the United States to United Kingdom. When attacking, German U-boats were ...

The result was the Kriegsmarine's almost complete reliance on U-boats during the rest of the Battle of the Atlantic. In the end, the U-boats were the Kriegsmarine's most effective weapons.

National Geospatial-Intelligence Agency chief historian Gary Weir discussed lessons the U.S. Navy learned after World War I German U-boat attacks on the Atlantic Coast. Mr. Weir argued that the ...