Hardcover. 4to. Published by Schiffer Publishing, Ltd., West Chester, PA. 1992. 240 pages. Illustrated. DJ has light shelf-wear present to the DJ extremities. Bound in cloth boards with titles present to the spine and front board. Boards have light shelf-wear present to the extremities. No ownership marks present. Text is clean and free of marks. Binding tight and solid. In this new book, Janusz Piekalkiewicz chronicles the British Secret Inteligence Service (SIS) and the "Ultra" secret, and its effect on the campaign in North Africa during the Secon World War. On the German side, Rommel also knew the use of intercepted enemy messages - an awareness that the British were able to gain only much too late and after many sacrifices.