Sources of Intelligence
Most Ultra intelligence was derived from reading radioed enemy messages that had been encrypted with various cipher machines. This was complemented by material derived from radio communications using other methods, such as radio traffic analysis and direction finding. In the early phases of the war, particularly during the eight-month Phoney War, the Germans could transmit most of their messages using land lines and so had no need to use radio. This meant that the British Government Code & Cypher School at Bletchley Park were allowed some time to build up experience of collecting and starting to decrypt messages on the various radio networks. Initially, German Enigma messages were the main source, with those of the German airforce predominating, as they used radio more, and their operators were particularly ill-disciplined.
Read more about this topic: Ultra
Famous quotes containing the words sources of, sources and/or intelligence:
“I count him a great man who inhabits a higher sphere of thought, into which other men rise with labor and difficulty; he has but to open his eyes to see things in a true light, and in large relations; whilst they must make painful corrections, and keep a vigilant eye on many sources of error.”
—Ralph Waldo Emerson (1803–1882)
“No drug, not even alcohol, causes the fundamental ills of society. If we’re looking for the sources of our troubles, we shouldn’t test people for drugs, we should test them for stupidity, ignorance, greed and love of power.”
—P.J. (Patrick Jake)
“I go by the great republican principle, that the people will have the virtue and intelligence to select men of virtue and wisdom [to the offices of government].”
—James Madison (1751–1836)