22 juin 1915 - Germany declares unrestricted submarine warfare
Description:
In 1915. Germany declared that it would attack other ships that their submarines saw. They felt that this way they could cut off supplies to the Allied Powers. They would attack passenger ships, but soon the Germans saw that they were carrying aid for the Allied Powers.Ajouté au bande de temps:
Date:
22 juin 1915
Maintenaint
~ Il y a 110 ans