The

The from the home of the codebreakers and the birthplace of modern computing this is the

Bletchley Park podcast.

Welcome to the June 2021 episode of the Bletchley Park podcast.

Falgelb, part two.

By late May 1940, the Germans have arrived at the French coast, cutting the Allied forces

in two.

Their risky invasion plan, Valgelb, or Case Yellow, has paid off.

For the Allies, things will only get worse, an evacuation of the British forces from Dunkirk,

the capture of Paris, and the ultimate humiliation at Compien. It also marked a turning point

for Bletchley Park. The attack led the Germans to change their enigma procedures,

which had been exploited so successfully by the Hutt 6 team.

It took a creative approach, as well as some lazy enemy operating procedures,

to restore Bletchley Park's capability in reading German messages.

In the second part of this special It Happened Here episode, Dr Thomas Cheatham

guides us through the dramatic world events that could have seen Bletchley Park lose the

ability to read Enigma for the rest of the war.

Special thanks go to Gus Monroe and Dr Ben Thompson for voicing our archival documents.

Music for voicing our archival documents. This is Bletchley Park.

It happened here.

Germany calling,

Germany calling.

...