The Polish played a big part in cracking the Enigma codes. From there, the Polish spy and intelligence operation became even bigger.

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Written by: Joram Appel & Astrid Deinhard
Hosted by: Astrid Deinhard
Director: Astrid Deinhard
Producers: Astrid Deinhard and Spartacus Olsson
Executive Producers: Astrid Deinhard, Indy Neidell, Spartacus Olsson, Bodo Rittenauer
Creative Producer: Maria Kyhle
Post-Production Director: Wieke Kapteijns
Research by: Joram Appel & Astrid Deinhard
Edited by: Karolina Dołęga
Sound design: Marek Kamiński

Colorizations by:
- Mikołaj Uchman
- Norman Stewart - https://oldtimesincolor.blogspot.com/

Sources:
- National Archives NARA
- Bundesarchiv

Soundtracks from Epidemic Sound:
- Back at Noon - Elliot Holmes
- Remembrance - Fabien Tell
- Weapon of Choice - Fabien Tell
- Last Point of Safe Return - Fabien Tell
- Break Free - Fabien Tell

Archive by Screenocean/Reuters https://www.screenocean.com.

A TimeGhost chronological documentary produced by OnLion Entertainment GmbH.