TheCodeBreakers
portance appeared in the messages, he would growl that the intercept
service had not been paying attention.
Such occasions were rare. Direct telegraph connections were soon
established between Pokorny's group and Deub-ner's; together they laid
open virtually every Russian cryptogram that their posts intercepted.
And they were guaranteed a good harvest when the headquarters of a
Russian army was given permission to use radio for its front-line
activities because its linemen were busy with repair work.
Thus it was that the Central Powers learned from Russian wireless
that the Grand Duke Nicholas was forming a huge phalanx of seven
armies to rumble into the industrialized heart of Silesia in east-central,
Europe. By the end of October, the picture of the composition,
disposition, and strength of the Russian forces that Hindenburg and
Ludendorff had before them could not have differed much from the
official one at Stavka