WW1 Submarines: What Were They Used For And Do Any Still Exist?
Submarines came to the forefront of military navies with the advent of WWI, as Germany's dangerous U-boats proved a ...
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Submarine Warfare: What Were the U-boats?
By 1914 the submarine was not a new weapon, having first been used 150 years earlier. By the start of WW1 all the major powers possessed submarines, but their role was still undefined. Were they long ...
UPI13d
U.S. studies Germany's announcement of uncurbed U-boat warfare
WASHINGTON, Feb. 2, 1917 (UP) - Official hint that some announcement of this government's course with regard to Germany's announced intention of waging unrestricted submarine warfare may be looked ...
PBS7y
Wilson and WWI
Germany's unrestricted submarine warfare, however, was an intolerable affront to America's dignity and honor. At the start of 1917, British intelligence intercepted the Zimmerman telegram ...
Mental Floss8y
U.S. Breaks Off Relations With Germany
Germany’s fateful decision to resume unrestricted submarine warfare on February 1, 1917, allowing U-boat commanders to sink unarmed neutral vessels without warning, sent shockwaves around the ...
BBC7mon
How was the USA involved in World War One?
Germany had a policy of unrestricted submarine warfare ... was the first time the United States had led a major offensive in WW1, and its success raised the stature of the American Army.