The U.S. Intelligence Community comprises 17 federal agencies and departments that gather, analyze, and share information for national security and defense, foreign relations, law enforcement, and other purposes.
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U.S. Army Intelligence and Security Command, a.k.a. Army Intelligence, conducts intelligence and security operations for military commanders and national decision makers. Army Intelligence comprises a dozen or so units around the world, including the National Ground Intelligence Center, which provides ground forces intelligence to the Department of Defense.