Naval mine ship, HMHS "Britannic", which was the sister ship of the RMS "Titanic." During World War II, the U-boat fleet, which dominated much of the battle of the Atlantic, was small at the beginning of the war and much of the early action by German forces involved mining convoy routes and ports around Britain. German submarines also operated in the Mediterranean Sea, in the Caribbean Sea, and along the U.S. coast. Initially, contact mines (requiring a ship to physically strike a mine to detonate it) were employed, usually tethered at the end of a cable just below the surface of the
SS Donegal Both Jewell and Priest then served on "Titanic"s White Star Line sister ship , and survived when she was sunk in November 1916. When "Donegal" sank, Priest survived yet again but Jewell was killed. In 1917 Priest was awarded the Mercantile Marine Ribbon for his service in the war. "Donegal"s wreck lies intact on her port side in about of water. SS Donegal SS "Donegal" was a Midland Railway passenger ferry that served in the First World War as an ambulance ship. She was completed in 1904 and sunk by enemy action in April 1917. In 1897–1903 the Midland Railway