4 magg 1916 anni - The Sussex pledge: Stay neutral
Descrizione:
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.Aggiunto al nastro di tempo:
Data:
4 magg 1916 anni
Adesso
~ 109 years ago