The Deadly U-Boats Of WWI. The Imperial German Navy's U-boats were some of the deadliest vessels of the war, and they were responsible for sinking over 5,000 Allied ships.

How the infamous sinking of the Lusitania by a German U-boat in WW1 led to 1,200 deaths and arguably helped draw the United States into the conflict.

Just weeks before World War I ended, a German U-boat attack turned the Irish Sea into a graveyard, claiming over 500 lives in ...

A German U-Boat Sank This WWI Ship In Three Minutes, ... out that four members of the Stephen Furness's crew washed up along the coast of north Wales almost a month after the sinking.

The U-111, the last World War I-era German submarine to be discovered in U.S. waters, was sunk off the coast of Virginia in 1922 by the U.S. Navy, sinking to the seabed at what was thought to be a ...

The wreck of a WWI German U-boat sunk by the U.S. Navy in 1922 has been discovered off the East Coast of the United States, about 40 miles off Virginia and at a depth of about 400 feet.

The HMS Hawke was torpedoed by a German U-boat on Oct. 15 ... Wreck believed to be WWI ship that sank with over 500 sailors ... New Titanic scans give insight into iconic shipwreck's sinking 00:45.

How the infamous sinking of the Lusitania by a German U-boat in WW1 led to 1,200 deaths and arguably helped draw the United States into the conflict.