GENERAL STAFF: Aids Secretary of War in forming and executing plans and policies for the entire army.
INFANTRY: A fighting arm – supported by other arms. Chief weapons: mortars, rifles and machine guns.
ORDNANCE DEPARTMENT: Designs, procures, issues and maintains weapons, motor vehicles and ammunitions.
CAVALRY: Horse and mechanized. Used for attack, reconnaissance, security. Weapons like that of the Infantry.
QUARTERMASTER CORPS: Feeds, clothes, and houses the Army. Procures all material of standard manufacture.
ARMORED COMMAND: Tanks furnish greatest striking power of attack. Have greatest mobility and fire power.
CHEMICAL WARFARE SERVICES: Protects against enemy chemicals; may support fighting arms in retaliatory gas warfare.
TANK DESTROYER COMMAND: Operates against and destroys enemy armored forces. Has high fire power and mobility.
TRANSPORTATION CORPS: Embraces rail, water, highway shipments; ports of embarkation, regulating stations.
FIELD ARTILLERY: Supports Infantry and Cavalry with guns, howitzers. Firing unit is battery of four guns.
MEDICAL DEPARTMENT: Maintains health of Army. Services: medical, dental, sanitary, nursing, veterinary.
COASTAL ARTILLERY: Operates coast guns, mines ports, charge with all antiaircraft defense.
FINANCE DEPARTMENT: Pays Army salaries and amounts due for Army purchases. Audits accounts of Army property.
ARMY AIR FORCES: Missions: bombardment, pursuit, observation, air defense, ground support, and transport.
ADJUTANT GENERAL’S DEPT: Communicates orders. Arranges and preserves military records. Conducts recruiting service.
CORPS OF ENGINEERS: Builds roads, bridges. Charged with laying mines, camouflage, demolitions, operation of utilities.
CORPS OF CHAPLAINS: Is specially charged with religious, and moral welfare of members of all arms and services. CORPS OF CHAPLAINS: Is specially charged with religious, and moral welfare of members of all arms and services.
SIGNAL CORPS: Handles all signal communications at headquarters of divisions and larger units.
INSPECTOR GENERAL’S OFFICE: Assists in military administration. Inspects commands, posts and installations. Investigates complaints.