TheCodeBreakers
Goring ripped it open. When he read its contents, he leaped from his
chair and, striding angrily up and down, raged at Dahlerus that he had
in his hands proof that the Poles were sabotaging every move toward
negotiation.
After a few minutes he calmed down enough to tell the Swede what
had been in the envelope. It was a telegram from the Polish government
in Warsaw to its ambassador in Berlin. It was in code, of course, but the
cryptanalysts of Goring's Forschungsamt, who had long ago cracked the
Polish diplomatic code, had reduced it to plaintext at once, translated it
into German, and sent a copy to Goring via messenger. The entire
process had taken the communications-intelligence agency less than an
hour.
At the" end of the telegram came a "special and secret message" to the
ambassador: "Do not enter under any circumstances into any factual
discussions...." To Goring this proved so conclusively that the Poles had
annaabi.ee 
