Books like The double-cross system by J. C. Masterman

A look at OSS spymaster Allen Dulles and his covert operations in Nazi Germany during World War II.

Marie‑Madeleine Fourcade, a Frenchwoman born into privilege, led the largest spy network in occupied France during World War II, gathering crucial intelligence that helped plan D‑Day and supporting the resistance against the Nazis.

A detailed account of the Double Cross System, the covert network that turned German spies into double agents and deceived Hitler into misdirecting his forces, enabling the successful D‑Day invasion of Normandy.

A thrilling espionage novel about the OSS agents tasked with convincing Hitler that the Allied invasion will take place on the beaches of Spain.

From the Preface... Experience proved that intelligence functions best when limited to its proper tasks: the collection, collation, evaluation, and distribution of information concerning the enemy. Although. for best efficiency, those who work in intelligence must cooperate closely with those who use it, they must never attempt to usurp the functions of either those who make plans or those who direct operations. As this book demonstrates, secrecy is often essential to security and continuing production of intelligence, but it is a double-edged weapon that must be wielded carefully lest it would the wielder ,ore deeply that the enemy. Restricting intelligence to "those who need to know" sometimes requires both omniscience and omnipotence.

"cracking stuff . . . vivid and hitherto unknown details."-Sunday Times (London) The complete untold story of the cracking of the infamous Nazi code Most histories of the cracking of the elusive Enigma code focus on the work done by the codebreakers at Bletchley Park, Britain's famous World War II counterintelligence station. In this fascinating account, however, we are told, for the first time, the hair-raising stories of the heroic British and American sailors, spies, and secret agents who put their lives on the line to provide the codebreakers with the materials they needed. Noted British journalist Hugh Sebag-Montefiore tracked down many of the surviving players in the Enigma drama, and these witnesses-some of them speaking on record for the first time-provide unforgettable firsthand accounts of the courageous men and women who faced death in order to capture vital codebooks from sinking ships and snatch them from under the noses of Nazi officials. In addition to these gripping stories, we learn fascinating new details about the genesis of the code and the feverish activities at Bletchley. Enigma is a spellbinding account of the brilliant feat of decryption that turned the tide of World War II.