"Unterseeboot." . . . . "Military history" . . . . . . . . . . "Fremantle's secret fleets : allied submarines based in Western Australia during World War II" . . . . "Fremantle's secret fleets : Allied submarines based in Western Australia during World War II" . "History" . . . . . "1900 - 1999" . . "Weltkrieg (1939-1945)" . . "Fremantle." . . "Fremantle (W.A.)" . .