Cryptanalysis of the Enigma Bletchley Park to describe the network that used the same Enigma setting sheets. Initially these were recorded using coloured pencils and were given the names "red", "light blue" etc., and later the names of birds such as "kestrel". During World War II the settings for most networks lasted for 24 hours, although towards the end of the war, some were changed more frequently. The sheets had columns specifying, for each day of the month, the rotors to be used and their positions, the ring positions and the plugboard connections. For security, the dates were in reverse chronological order down the
The Kingdom of the Netherlands During World War II a negative conclusion, according to critics). De Jong's work is regarded as the most important Dutch publication on World War II, and in the series he uncovered hitherto unpublicized events from the war, such as the death by firing squad of Dutch deserter , executed for desertion on 12 May 1940 after a quick court-martial—he was the only Dutch soldier to be executed by the Dutch in the twentieth century. De Jong's work supported and contributed to a vision of the Dutch during the war that has come increasingly under fire. The general idea presented in "The Kingdom of the