In this second edition of U-Boats under the Swastika, first published in 1973, J. P. Mallmann Showell has revised and rewritten much of the text in the light of the recently released Enigma documents which have called much of the interpretation of World War 2 into question. Supported by a wealth of rare photographs, many previously unpublished in Britain, and a selection of line illustrations and diagrams, U-boats under the Swastika traces the history of the German U-boat arm from its prewar origins, through the heyday of the Wolf Packs and service in the far corners of the oceans, to the final death with dignity in 1945. The development of weapons, radar and new boats, amongst other subjects, are supported by comprehensive tables of data which all go to make this book a fascinating account of U-boats under the Nazi flag. It is fitting that U-boats under the Swastika has been written by the son of a U-boat man: J. P. Mallmann Showells father, Diesel Obermaschinist Jak Mallmann, was lost at sea on his 13th operational tour with U377 in January 1944 when, ironically, his boat was sunk by a German torpedo.