... was to be secret. In this essay I will be describing the organisation of people at Bletchley Park. The need for Bletchley Park was clear. The academics were used to cracking codes by using the pencil paper method. They would simply study messages and look for similarities to try to builds up an idea of how the code was constructed. But by 1939 these methods were out of date, the Germans had been using 'enigma', a coding machine that did not use random symbols, the letters bore no relationship whatsoever to the words of the text of the message for example," SOPJS MIJKK", two 'K's did not mean a double letter and the 'J's did not all relate to the same letter. The British government believed that the system was unbreakable, therefore no effort had been put into cracking it, but now that the war seemed inevitable, something just had to ...

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