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Monthly Losses of Allied and Neutral Shipping by Uboat Actionen.svg en Brief of War in the Atlantic Up to Reading of Uboat Traffic in December de Diagramm ber monatlich versenkten allierten Schiffsraum und Wirkung der Gegenmnahmen Ubootkrieg UTC Ubootkrieg NSA derivative work Mtty talk User Mtty Monthly Losses of Allied and