Britain appeared doomed until the German naval codes were cracked.

Bletchley Park

The Codebreakers’ War in the Atlantic

By Gene J. Pfeffer

The Battle of the Atlantic was a life-and-death struggle between the German Kriegsmarine and the Allied navies that was fought for control of Britain’s lifeline to its empire and to the United States. Read more

Bletchley Park

No Deserts for Il Duce: The Italian Rout in East Africa

By John W. Osborn Jr.

“I am not a collector of deserts,” Mussolini declared regarding his imperial ambitions. Instead, he would be a loser of them, most publicly in North Africa and, in one of World War II’s least-known campaigns, in East Africa. Read more

German soldiers operate an Enigma machine, sending classified information encoded through a system of rotor settings that were believed to be virtually impossible to crack. However, Allied cryptanalysts at Bletchley Park were reading top secret German communications for some time during World War II.

Bletchley Park

The Miracle of Bletchley Park

By Hervie Haufler

Great Britain’s military intelligence leaders learned from their experience in World War I that the kinds of minds capable of breaking codes are a rare commodity and are often not likely to blossom in a military atmosphere. Read more

Japanese troops advance through the rubble of a destroyed building in Shanghai on October 29, 1937. Young Marine Captain Evans Carlson witnessed the onslaught.

Bletchley Park

Creating the OSS: FDR’s Network of Personal Spies

By Peter Kross

One of Franklin D. Roosevelt’s longtime interests was the hidden world of espionage. In the months before the United States entered World War II, the commander-in-chief was dabbling in the covert world of intelligence-gathering, using a number of trusted personal friends as his own private eyes and ears around the globe. Read more