Signals Intelligence Service

Signals Intelligence Service - abbreviated SIS - was the name given to a secret U.S. military unit which was entrusted primarily in World War II with the deciphering enemy messages. It was located in the building Arlington Hall in Arlington, Virginia.

The Department was founded in April 1930 by the cryptologist William F. Friedman, together with the ( then unknown ) math teachers Frank Rowlett, Abraham and Solomon Kullback Sinkov and gradually expanded.

In addition to the decryption of hostile intelligence of the SIS was responsible later for encryption own military news of the U.S. armed forces.

The Signals Intelligence Service has risen with the founding of the Secret Service United States Army Security Agency on September 15, 1945 in this.

  • Historical News Service (United States)
  • Enigma (machine)
  • United States in World War II
  • Intelligence services during World War II
  • Organization ( Cryptology )
  • Established in 1930
  • Arlington County
Arlington County, Virginia Mathematics Abraham Sinkov
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