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0h 36min, feb 1, 1917 y - Submarines Unsuspended

Description:

Germany once again uses unrestricted submarine warfare in the European waterways. This act was part of the reason the U.S. decided to join the war.

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World War I and Russian Revolution

5 Jan 2018

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Date:

0h 36min, feb 1, 1917 y

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~ 109 years ago

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