The Army, as one of the three military departments
(Army, Navy
and Air Force)
reporting to the Department
of Defense, is composed of two distinct
and equally important components: the active
component and the reserve components. The
reserve components are the United
States Army Reserve and the Army
National Guard.
Regardless of component, The Army conducts
both operational and institutional missions.
The operational Army consists of numbered
armies, corps, divisions, brigades, and battalions
that conduct full spectrum operations around
the world. (Operational
Unit Diagram and descriptions)
The institutional Army supports the operational
Army. Institutional organizations provide
the infrastructure necessary to raise, train,
equip, deploy, and ensure the readiness of
all Army forces. The training base provides
military skills and professional education
to every Soldier—as well as members
of sister services and allied forces. It also
allows The Army to expand rapidly in time
of war. The industrial base provides world-class
equipment and logistics for The Army. Army
installations provide the power-projection
platforms required to deploy land forces promptly
to support combatant commanders. Once those
forces are deployed, the institutional Army
provides the logistics needed to support them.
Without the institutional Army, the operational
Army cannot function. Without the operational
Army, the institutional Army has no purpose.
Depicted below is a top-level look at how
The Army is organized. All units, installations
and facilities within The Army either report
to one of the Army Major Commands or directly
to the Headquarters Department of the Army
(HQDA) Staff.
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