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G-2 refers to the military intelligence staff of a unit in the United States Army.[1] It is contrasted with G–1 (personnel), G–3 (operations), G–4 (logistics) and G-5 (civil-military operations).[2] These "G" sections have counterparts in other branches of the service, the U.S. Navy using an N– designation and the Joint Staff the prefix J.[1]

G-2 intelligence played an important role during World War II, both aiding fighting forces and in special missions such as those of T-Force and Operation Alsos.[3]


G-2 intelligence gathering and interpretation traces its history to the American Revolution.[1] The Military Intelligence Service was formed during World War II. In time, this evolved into the Military Intelligence Corps, one of the basic branches of the United States Army.[4]

See also[]


Additional reading[]

  • Berkowitz, Bruce D., and Allan E. Goodman. Strategic Intelligence for American National Security. Princeton, NJ: Princeton University Press, 1989.
  • Finnegan, John Patrick, and Romana Danysh. Military Intelligence. Washington, D.C.: Center of Military History, United States Army, 1998.
  • Miller, Nathan. Spying for America: The Hidden History of U.S. Intelligence. New York: Paragon House, 1989.

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