The Enigma Bulletin

The Enigma Bulletin No. 4 (Special issue, Kraków 1998)

David KOHNEN, Commanders Winn and Knowles: Winning the U-Boat War with Intelligence 1939-1945.

Vol. In 8*, pp. VIII, 168 including 46 full page just declassified documentary photographs. Paper. ISBN 83-86110-34-1. Price: USD 25.00 (including postage and packing).

At the strategic core of the Allied naval effort in the Battle of the Atlantic were Royal Navy Volunteer Reserve Commander Roger Winn of the Admiralty Operational Intelligence Center and U.S. Navy Commander Kenneth Alward "K. A." Knowles of the U.S. Navy "F-21 Atlantic Section". Together Winn and Knowles influenced the most pivotal decisions and operations in the Atlantic, Indian Ocean, and other naval theaters as well. They fostered an atmosphere of Anglo-American cooperation that was once described by Patric Beesly as "probably closer than between any other British and American organizations in any service and in any theater".

The purpose of the study is to reassess some previously established assumptions about the Winn and Knowles team. Fresh perspectives and conclusions will be offered drawn from recently accessible documents and photographs.