11 h 10 m, 22 feb 1915 año - Germany declared unrestricted submarine warfare (first declaration) - Feb 22, 1915
Descripción:
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.Añadido al timeline:
fecha:
11 h 10 m, 22 feb 1915 año
Ahora mismo
~ 109 years ago
