UNITED STATES ARMY
1st INFANTRY DIVISION (UEx)
HEADQUARTERS & HEADQUARTERS BATTALION GUIDONS
Headquarters battalions of UEx divisions have three companies: Headquarters and Support Company (administrative support and security), Operations Company (command and control), and Signal, Intelligence & Sustainment Company ( signals, intelligence and logistics). The headquarters battalion, which replaces the division special troops battalion, is designed to make the division headquarters a stand-alone, self-supporting organization.
2017 Reorganization: As first activated the divisional headquarters battalions had four companies, but the separate Signal Company has now been incorporated into the Intelligence & Sustainment Company to form the new SIS Company.