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When did German submarines began sinking unarmed and unresisting merchant and passenger ships without warning?
World War 1.
German submarines began sinking unarmed and unresisting merchant and passenger ships without warning?
WWI; Guerre de Course-Merchant Raiding aka Commerce raiding.
What did the Allies do to protect their merchant ships in the Atlantic Ocean?
arm the merchant ships
What was the navel tactic where submarines sink merchant ships without warning?
The tactic began in WWI and is known as Unrestricted Submarine Warfare.
What has the author Frederick C Matthews written?
Frederick C. Matthews has written: 'American merchant ships, 1850-1900' -- subject(s): History, Merchant marine, Merchant ships, Ships
Where did merchant ships travel to?
Merchant ships did (and still do!) travel all over the world, wherever there are sea ports.
What has the author Roger Villar written?
Roger Villar has written: 'Merchant ships at war' -- subject(s): Armed merchant ships, British Naval operations, Falkland Islands War, 1982, Merchant ships
How many merchant ships were sunk in World War 1?
103 merchant ships were sunk in world war one
Congress denied President Wilson the right to do what with merchant ships?
Congress denied President Wilson the right to do what with merchant ships?
What has the author Orchard Cook written?
Orchard Cook has written: 'Mr. Cook's motion for arming merchant vessels' -- subject(s): Armed merchant ships, Merchant ships
Eric the Red what ships did he use?
Knarrs, which are Viking merchant ships.
Why was the sussex pledge important?
It was a promise made in 1916 between Germany and the United States, before the US entered the war, allowing armed merchant ships, but not passenger ships, to be torpeoded without warning. However it was rescinded in 1917
