Signals Intelligence in World War II: A Research Guide

In 1974, Frederick W. Winterbotham’s book The Ultra Secret disclosed the Allied success in breaking German high command ciphers in World War II, and a new form of history began - the study of intelligence and its impact on military operations and international politics. This guide documents and annotates over 800 sources that have appeared in the since the 1970s on ULTRA and MAGIC or the Allied code-breaking and cryptanalytic assault on Axis Communications. The book examines and annotates primary and secondary sources on the role of ULTRA and MAGIC in the Pearl Harbour attack, the battles of the Atlantic, Coral Sea and Midway, and the campaigns in the Mediterranean, Northwest Europe, the Middle East and the Pacific, as well as in the realm of espionage and special operations. It also provides details on sources concerned with Signit and cryptanalytic programmes of the Axis and neutral powers.