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xamartinez062
a u boat is a submarine basically and it was armed with missiles and it was Nazi germany
rosemass420

Answer:

1. What is a U-boat? Answer: a German submarine use in would 1 or world 2

2. What is it armed with Answer: missiles

3. what country is a main user? Answer: I don’t know

-Sorry I never give you all answer that all I know

Explanation: Hope this help :D