Corps of Intelligence Police
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Corps of Intelligence Police
U.S. Army Corps of Intelligence Police Badge - World War I Era
U.S. Army Corps of Intelligence Police Badge - Post WW I

The Corps of Intelligence Police (CIP) was founded by Ralph Van Deman in 1917 as an intelligence agency within the United States Army, and the War Department. In World War I, many of the intelligence disciplines still in use today were deployed for the first time: aerial photography, signals intercept, interrogation teams, and counterintelligence agents.[1]

Army Intelligence within the continental United States and intelligence in support of the forces overseas developed along two separate tracks. On the home front, COL Ralph Van Deman, Chief of the Military Intelligence Division of the War Department General Staff, directed much of his attention to the new field of negative intelligence, or counterintelligence. The Army was concerned about a possible threat from German spies and saboteurs.[2] Van Deman used the newly created Corps of Intelligence Police to conduct undercover investigations of individuals and organizations. He was equally concerned about the loyalty of recent immigrants being drafted into service. Van Deman feared that the newly forming National Guard and National Army divisions might become "infested" with German agents and sympathizers. To protect the force, two soldiers within each company were appointed to secretly report on any suspicious activity, using the guidelines contained in a confidential pamphlet, "Provisional Counter-Espionage Instructions".[3]

Following the First World War the CIP was downsized and its budget cut until, by 1941, it had a staff of only 16. After the attack on Pearl Harbor a decision was made to reorganize and enlarge the CIP,[4] which was renamed the Counter Intelligence Corps.[5]


  1. ^ The History of the Counter Intelligence Corps
  2. ^ "Counter Intelligence Corps: History and Mission in WWII", U.S. Army Military History Institute, Carlisle Barracks, PA 17013-5008.
  3. ^ Sayer, Ian, and Douglas Botting. America's Secret Army: The Untold Story of the Counter Intelligence Corps. Grafton Books, 1989. ISBN 0-246-12690-6
  4. ^ Counter Intelligence in World War II
  5. ^ Gilbert, James L., John P. Finnegan and Ann Bray. In the Shadow of the Sphynx: A History of Army Counterintelligence, History Office, Office of Strategic Management and Information, US Army Intelligence and Security Command, Fort Belvoir, Virginia, Dec 2005; pp. 1-22. ISBN 1234461366 (This file might take time to load.)

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