G-2 (intelligence)

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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, with the U.S. Navy using an N– designation, the U.S. Air Force using the A- designation, and the Joint Staff using the J- designation.[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[edit]


  1. ^ a b c Definition
  2. ^ Carter,Jr., Archer & Murray (July 1988). "Description of Army Staff Functions: Targets for Planning Aids" (PDF).CS1 maint: multiple names: authors list (link)
  3. ^ Koch, Oscar W., Brig. Gen.: G-2: Intelligence for Patton
  4. ^ "Military Intelligence Corps". Branchorientation.com. Retrieved 20 May 2011.

Further reading[edit]

  • Berkowitz, Bruce D., and Allan E. Goodman. Strategic Intelligence for American National Security. Princeton, NJ: Princeton University Press, 1989.
  • Finnegan, John Patrick, and Romana Danish. 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.
  • U.S. Army (12 December 2014). "G-2 Security Intelligence". www.army.mil. Retrieved 12 July 2019.