4 mayo 1916 año - The Sussex pledge: Stay neutral
Descripción:
The German government came up with the Sussex pledge, which agreed to give adequate warning before sinking merchant and passenger ships and to provide for the safety of passengers and crew. The pledge was upheld until February 1917 when unrestriced sumarine warfare started.
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fecha:
4 mayo 1916 año
Ahora mismo
~ 109 years ago