522nd MI Battalion - In 1976, the first experimental CEWI battalion, the 522nd MI Bn, was fielded at Fort Hood, Texas and assigned to 2nd Armored Division.

Fort Huachuca, AZ. - In the late 1970s, the Army undertook a major realignment of its tactical intelligence assets. It formed a series of new integrated combat electronic warfare and intelligence (CEWI) units to carry out functions previously performed by a variety of Military Intelligence and former Army Security Agency units. Under the CEWI concept, each combat division would have an organic military intelligence battalion that combined signal intelligence, electronic warfare and long-range reconnaissance elements and integrated them with ground sensor and surveillance radar assets. Likewise, separate maneuver brigades and armored cavalry regiments received organic CEWI companies. At the corps-level, CEWI groups or brigades fielded an operations battalion, an aerial exploitation battalion, and an interrogation and exploitation battalion. These arrangements generally prevailed until the Army Modular Force reorganization of the early 21st Century.

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