World War I was ... it disrupted the rules of war, Auten argued in his book. German U-boats were forced to fire, lose thousands of shells and waste time rearming back in port.

As one of the World War I allies, Japan received seven of the surrendered U-boats but went a bit beyond mere 'examination.' Japan imported some 800 German technicians, engineers, and naval ...

When most people think of World War ... U-boats and ended any German hope of starving Britain into submission. They also allowed safe passage for American troops, enabling over one million US ...