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Serving as a British armed merchant cruiser, Laurentic (pictured) was sunk by German naval mines off the northern coast of Ireland, resulting in 354 deaths.
Related Wikipedia articles
Armed merchantman
Merchant ship equipped with guns, usually for defensive purposes
An armed merchantman is a merchant ship equipped with guns, usually for defensive purposes, either by design or after the fact. In the days of sail, piracy and privateers, many merchantmen would be routinely armed, especially those engaging in long distance and high value trade.…Source: Wikipedia (CC BY-SA)
SS Laurentic (1908)
British ocean liner sunk by mines in 1917
SS Laurentic was a British transatlantic ocean liner that was built in Belfast, Ireland, and launched in 1908. She is an early example of a ship whose propulsion combined reciprocating steam engines with a low-pressure steam turbine.Source: Wikipedia (CC BY-SA)
Naval mine
Weapon for use in waters, triggered by the target's approach
A naval mine is a self-contained explosive weapon placed in water to damage or destroy surface ships or submarines. Similar to anti-personnel and other land mines, and unlike purpose launched naval depth charges, they are deposited and left to wait until, depending on their…Source: Wikipedia (CC BY-SA)