Submarines During World War I
The first time military submarines had significant impact on a war was in World War I. Forces such as the U-boats of Germany saw action in the war on Allied commerce (Handelskrieg). The submarine's ability to function as a practical war machine relied on new tactics, their numbers, and submarine technologies such as combination diesel/electric power system that had been developed in the preceding years. More like submersible ships than the submarines of today, Submarines operated primarily on the surface using standard engines, submerging occasionally to attack under battery power. They were roughly triangular in cross-section, with a distinct keel, to control rolling while surfaced, and a distinct bow.
Read more about this topic: History Of Submarines
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