11 ore 10 min, 22 feb 1915 anni - Germany declared unrestricted submarine warfare (first declaration) - Feb 22, 1915
Descrizione:
Unrestricted submarine warfare was first introduced in World War I in early 1915, when Germany declared the area around the British Isles a war zone, in which all merchant ships, including those from neutral countries, would be attacked by the German navy.Aggiunto al nastro di tempo:
Data:
11 ore 10 min, 22 feb 1915 anni
Adesso
~ 109 years ago
