Wikijunior:World War II/Submarines

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A German U-Boat about to submerge.

Submarines are ships designed to travel underwater, and remain there for an extended amount of time. Submarines were used in World War I and World War II. Back then they were very slow and had a very limited shooting range. In the beginning of the war they mostly travelled on top of the sea, but as radar began developing and becoming more accurate the submarines were forced to go under water to avoid being seen. German submarines were called U-Boats. The Germans were very good at navigating and operating their submarines. Because of their success with submarines, after the war Germans aren't trusted to have many of them.