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The submarine, or the Unterseeboot (U-Boat), was an underwater vessel that was very successful at blockading Britain from United States trading vessels. They helped turn public opinion in the US against the Germans, due to their sinking US merchant ships without a warning. They were very vulnerable on the surface, so they couldn't board supply vessels or give any warning.

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11y ago

If you are looking for a brand new gas grill try visiting you local hardware store for great deal. If you are fine with buying a used one, go on eBay and you could find so good deals.

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Q: What is the submarine during World War I?
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