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feb 1, 1915 - Germany Announces Submarine Warfare

Description:

Germany announced unrestricted use of submarines in warfare.

This was a new strategy in warfare, and could be considered the reason that the United States got involved in World War 1.

Added to timeline:

World War 1 - US History

ByEdward Paloucek
27 Sep 2018
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349

Date:

feb 1, 1915
Now
~ 110 years ago

Images:

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