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
Whitefish Bay (2013 ship) Hamilton Island in the Saint Lawrence Seaway east of Cornwall, Ontario while carrying a load of coal. According to the Department of Fisheries and Oceans, the ship suffered a massive power failure, which caused it to run aground. The ship was refloated on 14 July with the aid of tugboats and was to be taken to Saint-Zotique, Quebec for inspection. Whitefish Bay (2013 ship) Whitefish Bay is a self-unloading lake freighter that entered service with Canada Steamship Lines (CSL) in 2013. The vessel is the third of CSL's ships. Her sister ships are , and . According to the "Whitefish