(a) The Army's Organizational Framework: Army units will assume one of the following three mission roles:
Combat units, such as infantry, armor, and artillery, which are directly involved in combat and carry out combat missions.
Combat support units, such as chemical defense, military intelligence, military police, and signal units, which provide combat support to combat units.
Combat service support forces, such as transportation, medical, quartermaster (sustenance), armament, finance, and general support (administration), which provide logistical and administrative support to the above forces.
(ii) ARMY COMMAND STRUCTURE: The Army has three types of major commands: the Land Forces Command (LFC), the Army Service Component Command (ASCC), and the Immediate Service Units (ISUs).
Army Commands are primarily responsible for carrying out, through various protocols, the various functions set forth in the many provisions of 10 U.S.C. (Armed Forces). (Comprised of U.S. Army Forces Command, U.S. Army Training and Doctrine Command, and U.S. Army Materiel Command).
ASCC is the Army component of the theater commands and serves as the primary mission-executing agency establishment. The theater commander may use an ASCC as a joint force ground command or as a joint task force command, as required. (Composed of U.S. Army Europe (7th Army Group), which is the counterpart to U.S. European Command; U.S. Army Central (3rd Army Group), which is the counterpart to U.S. Central Command; and U.S. Army North, which is the counterpart to U.S. Northern Command.) U.S. Army Southern Command (U.S. Army South), counterpart to U.S. Southern Command; U.S. Army Pacific (U.S. Army Pacific), counterpart to U.S. Pacific Command; U.S. Army Special Operations Command (U.S. Army Special Operations Command), counterpart to U.S. Special Operations Command, counterpart to U.S. Special Operations Command; Military Surface Deployment and Distribution Command, counterpart to U.S. Transportation Command; U.S. Army Space and Missile Defense Command, counterpart to U.S. Strategic Command; and Eighth U.S. Army, counterpart to U.S. Forces Command Korea).
Directly subordinate units are made up of one or more units of different services or units performing different missions. These Army units provide extensive and comprehensive support to the Army based on protocols that are unique and distinct from other Army units. (Comprised of: U.S. Army Network Enterprise Technology Command/9th Signal Command (Army); U.S. Army Medical Command; U.S. Army Intelligence and Security Command (U.S. Army); and U.S. Army Medical Services Command (U.S. Army). U.S. Army Intelligence and Security Command; U.S. Army Criminal Investigation Command; U.S. Army Corps of Engineers; and U.S. Army Corps of Engineers. Engineers; U.S. Army Military District of Washington; U.S. Army Test and Evaluation Command; U.S. Military Academy (note: West Point); U.S. Army Reserve (note: West Point); U.S. Military Academy (note: West Point); and U.S. Army Reserve (note: West Point). Military Academy); U.S. Army Reserve Command (U.S. Army Reserve Command); U.S. Army Acquisition Support Command (U.S. Army Acquisition Support Command); U.S. Army Installation Management Agency).