Echelons Above Corps (EAC) Intelligence and Electronic Warfare (IEW) Operations
US Army Intelligence and Security Command (INSCOM) completed an EAC Intelligence, Security, and Electronic Warfare Architecture Study . This was the base document for EAC intelligence and electronic warfare (IEW) force development. FM 100-16, published in April 1985, incorporated key IEW doctrinal principles. This manual applies those principles to the Military Intelligence (MI) brigades (EAC) that support IEW in different theaters.
