22 jun 1915 año - Germany declares unrestricted submarine warfare
Descripción:
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.Añadido al timeline:
fecha:
22 jun 1915 año
Ahora mismo
~ 110 years ago