The Poles were early pioneers and they escaped Europe to come to the UK. There’s a big bit at Bletchley itself about it, and a memorial to the Poles that dies to get the secrets out of Poland. Bletchley then built on it.I have Bobs book. Don’t like the first chapter and struggled to get into it.
Instead I am torturing my self with a heavy read about the truth regarding the cracking of Enigma.
Turns out Turing and Bletchley were not quite so involved as history would portray. The Poles were early pioneers and there were spies and espionage heavily involved.
I’d you ever get the chance to go, and get a tour, it’s brilliant.