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12 h, feb 5, 1915 y - Germany declares a "war zone" around Great Britain

Description:

essentially effecting a submarine blockade where even neutral merchant vessels were to be potential targets.

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WW1 timeline

ByJulie Vilsgaard
27 Oct 2017
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364

Date:

12 h, feb 5, 1915 y
Now
~ 110 years ago
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