Copyright © Philip M. Parker, INSEAD. Terms of Use.

(From Wikipedia, the free Encyclopedia)
The Army is that branch of the United States Armed Forces which has primary responsibility for land-based military operations. Historically, the Army was formed before the Republic, in 1775, to meet the demands of the American Revolutionary War.
Components of the U.S. Army
The U.S. Army has three components:
All three components have taken part in every war of the United States from World War I onward. The use of the Army Reserve and National Guard increased after the Vietnam War. Reserve and Guard units took part in the Gulf War, peacekeeping in Kosovo, and the 2003 invasion of Iraq.
- The Regular Army
- The Army Reserve
- The National Guard of the several States and territories
Structure of the U.S. Army
The U.S. Army is structured roughly:
The Army is organized by function. Combat forces include Infantry, Armor, Cavalry, and Special Operations Forces. Combat support troops include Artillery, Army Aviation, combat engineers, Army Logistics, Army Medical Corps, Army Transportation, Army Ordnance, Adjutant General's Corps, Signal Corps, and the Judge Advocate Generals Corps.
- army group - when required
- field army
- corps
- division
- brigade or group: Most American Army divisions are organized in three or more brigades. (See also regiment for cavalry units.)
- battalion or squadron: Infantry and artillery units are organized into battalions. Cavalry or armor units are formed into squadrons. A battalion-sized unit is commanded by a lieutenant colonel.
- company (military unit) or battery or troop: Artillery units are formed into batteries. Cavalry units are formed into troops. A company-sized unit is usually led by a captain.
- platoon
- squad or section
- crew or fire team
Rank Structure
The Officer Corps provides leadership and managerial functions, and is composed of
There are several sources of commissioned officers:
- Company Grade officers
- Second Lieutenant (2LT; pay grade O-1) - gold bar,
- First Lieutenant (1LT; pay grade O-2) - silver bar,
- Captain (CPT; pay grade O-3) - two silver bars,
- Field Grade officers
- Major (MAJ; pay grade O-4)- gold oak leaf,
- Lieutenant Colonel (LTC; pay grade O-5)- silver oak leaf,
- Colonel (COL; pay grade O-6)- silver eagle,
- and General officers
- Brigadier General (BG; pay grade O-7)- one star,
- Major General (MG; pay grade O-8)- two stars,
- Lieutenant General (LTG; pay grade O-9)- three stars,
- General (GEN; pay grade O-10) - four stars
- General of the Army - five stars in a pentagon
Officers receive a "Commission" assigning them to the Officer Corps by act of Congress. Commissioned officers are assigned to a branch of service until they reach the rank of Brigadier General, where it is assumed that they are competent to command soldiers of all branches.
- The U.S. Military Academy at West Point, New York commissions its graduates as second lieutenants in the Regular Army. Graduates of other military academies of the United States may elect to be commissioned in the Army
- Enlisted men who successfully pass Officer Candidate Schools (OCS)
- College graduates who underwent Army Reserve Officer Training Corps courses at a four-year university
- Lawyers, doctors, nurses, veterinarians, and chaplains may be directly commissioned into their respective corps
Once commissioned, an officer attends several levels of professional education, starting with branch qualification in their respective branch and concluding in Command and General Staff College at Fort Leavenworth, Kansas. Professional education is required for promotion at certain grades.
The Warrant Officer Corps is largely composed of highly trained specialists in certain select areas who must have a rank commensurate with their responsibility. Warrant officers receive the same pay as an analagous commissioned officer (a WO1 is paid the same as a second lieutenant, CW2 as a first lieutenant, CW3 as a captain, and CW4 as a major) but rank below commissioned officers and above non-commissioned officers.
The primary sources for Warrant Officers are the various Warrant Officer Training Programs at military posts and installations around the United States.
The Non-Commissioned Officer Corps (or NCO Corps) is the first line of leadership for the Enlisted members of the Army, and includes the ranks of
Training for Non-Commissioned Officers takes place at any of the various NCO training centers around the world.
- Corporal (CPL; pay grade E-4) (two stripes up),
- Sergeant (SGT; pay grade E-5)(three stripes up),
- Staff Sergeant (SSG; pay grade E-6)(three stripes up and one down),
- Sergeant First Class (SFC; pay grade E-7) and Platoon Sergeant (PSG; pay grade E-7) (three stripes up and two down),
- Master Sergeant (MSG; pay grade E-8) (three stripes up and three down),
- First Sergeant (1SG; pay grade E-9) (which holds the same enlisted pay grade as Master Sergeant, but which carries extra administrative duties - three stripes up and three down with a lozenge in the center),
- Sergeant Major (SGM; pay grade E-9) (three stripes up and three down with a star in the center),
- Command Sergeant Major (three stripes up and three down with a wreathed star in the center)
- and Sergeant Major of the Army (of whom there is only one, and who advises the Chief of Staff of the Army on matters relating to Enlisted personnel - three stripes up and three down with a centered eagle accompanied with two stars).
It should be noted here that it is the outstanding quality of the Non-Commissioned Officer ranks which has largely built the excellent reputation of the United States Army. Until relatively recent history, most countries depended upon their officer corps to micromanage strategy, tactics and virtually every other aspect of military operations. With the development of the NCO Corps, the United States Army took a giant step toward utilizing the skills, intelligence, adaptability and independence of its citizens during times of conflict. The confidence and esteem in which the Officer Corps holds the NCOs which serve in the United States Army is based upon hard-won combat experience. This experience has repeatedly shown that rank is no indicator of leadership ability, and that leaders will emerge during times of hardship and conflict. Many military historians have held that this is the true strength of any military organization which serves a democracy.
Enlisted ranks are
Training for enlisted soldiers usually consists of Basic Training, and Advanced Individual Training in their primary Military Occupational Specialty (MOS) at any of the numerous MOS training facilities around the world.
- Private (PV1; pay grade E-1) (no rank insignia),
- Private Enlisted Grade 2 (PV2; pay grade E-2) (one chevron pointing up),
- Private First Class (PFC; pay grade E-4) (one stripe up and a curved stripe (a rocker below),
- and Specialist (SPC; pay grade E-4) (which is the same Enlisted Grade as Corporal, but which requires technical leadership skills, as opposed to the combat leadership skills required of corporal -a dark green patch with an eagle centered). A Specialist ranks below a corporal in terms of chain of command.
All members of the Army must take an oath upon being sworn in as members, swearing (or affirming) to "protect the Constitution of the United States from all enemies, both foreign and domestic." This emphasis on the defense of the United States Constitution illustrates the concern of the framers that the military be subordinate to legitimate civilian authority. The civilian executive is the Secretary of the Army, formerly the Secretary of War, at the founding of the Republic.
Major Commands of the US Army Major Command and Commanders Location of Headquarters Intelligence & Security Command (INSCOM)-Major General Keith B. Alexander Fort Belvoir, Virginia Criminal Investigation Command (CID)-Major General Donald J. Ryder Fort Belvoir, Virginia Corps of Engineers (USACE)-Lieutenant General Robert B. Flowers Washington, D.C. Medical Command (MEDCOM)-Lieutenant General James B. Peake Fort Sam Houston, Texas Army Materiel Command (AMC)-General Paul J. Kern Alexandria, Virginia Training & Doctrine Command (TRADOC)-Leiutenant General Larry R. Jordan Fort Monroe, Virginia Forces Command (FORSCOM)-General Larry R. Ellis Fort McPherson, Georgia US Army South (ARSO)-Major General Alfred A. Valenzuela Fort Sam Houston, Texas Special Operations Command (ARSOC)-Lieutenant General Philip R. Kesinger Fort Bragg, North Carolina Military Traffic Management Command (MTMC)-Major General Ann E. Dunwoody Fort Eustis, Alexandria, Virginia Space & Missile Defense Command (SMDC)-Lieutenant General Joseph M. Consumano, Jr. Arlington, Virginia 8th US Army (EUSA)-Lieutenant General Charles C. Campbell Yongsan Army Garrison, Seoul Army Pacific Command (ARPAC)-Lieutenant General James L. Campbell Fort Shafter, Hawaii US Army Europe, 7th Army (AREUR)-General B. B. Bell Campbell Barracks, Heidelberg, Germany Army Central Command (ARCENT)-Lieutenant General David D. McKiernan Fort McPherson, Georgia Arny Reserve Command (ARC)-Lieutenant General James R. Helmly Fort McPherson, Georgia Army National Guard (ARNG)-Lieutenant General Roger G. Schultz Washington, D.C.
Formations of the United States Army
First Army "First In Deed" (Reserve)
Third Army: Army Central Command (ARCENT)
- 78th "Lightning" Division, Edison, NJ (Training Support)
- 1st Brigade (Training Support)
- 2nd Brigade (Training Support)
- 3rd Brigade (Training Support)
- 4th Brigade (Training Support)
- 5th Brigade "We Dare" (Training Support)
- 85th "Custer" Division (Training Support)
- 1st Brigade (Training Support)
- 2nd Brigade (Training Support)
- 3rd Brigade (Training Support)
- 4th Brigade (Training Support)
- 87th Division "Golden Acorn", Birmingham, AL (Training Support)
- 1st Brigade (Training Support)
- 2nd Brigade (Training Support)
- 3rd Brigade (Training Support)
- 4th Brigade (Training Support)
- 5th Brigade (Training Support)
- Army Units
- 4th Cavalry Brigade (Training Support)
- 157th Infantry Brigade (Training Support)
- 188th Infantry Brigade (Training Support)
- 205th Infantry Brigade (Separate) (Light)
Fifth Army (Reserve)
- C/JTF-Kuwait
- ARCENT Kuwait
- ARCENT Saudi
- ARCENT Qatar
- Army Prepositioned Stock (APS-3)
- Army Prepositioned Stock (APS-5)
Seventh Army: United States Army Europe
- 7th Infantry Division "Bayonets", Carson, CO (Light)
- 39th Infantry Brigade (Light) (Separate)
- 41st Infantry Brigade (Light) (Separate)
- 45th Infantry Brigade (Light) (Separate)
- 75th Division, Houston, TX (Training Support)
- 1st Brigade (Training Support)
- 2nd Brigade (Training Support)
- 3rd Brigade (Training Support)
- 4th Brigade (Training Support)
- 91st Division, Houston, TX (Training Support)
- 1st Brigade (Training Support)
- 2nd Brigade (Training Support)
- 3rd Brigade (Training Support)
- 4th Brigade (Training Support)
- Army Units
- 5th Armored Brigade (Training Support)
- 120th Infantry Brigade (Training Support)
- 166th Aviation Brigade (Training Support)
- 191st Infantry Brigade (Training Support)
Eighth Army: Korea
- V Corps, Heidelberg, Germany
- 1st Infantry Division ("The Big Red One")
- 1st Armored Divsion-- Wiesbaden, Germany
- 2nd Infantry Division ("Indian Head" Division)
- 25th Infantry Division (Light) ("Tropic Lightning")
- I Corps, Fort Lewis, Washington ("America's Corps")
- 3rd Brigade, 2nd Infantry Division (Light)
- 1st Brigade, 25th Infantry Division (Light)
- III Corps, Fort Hood, Texas
- 1st Cavalry Division
- 4th Infantry Division (Mechanized)
- --III Corps U.S. Army National Guard
- 7th Infantry Division (Light) ("Bayonet" Division)
- XVIII Airborne Corps
- 3rd Infantry Division (Mechanized} ("Rock of the Marne")
- 3rd Brigade ("Sledgehammer").
- 10th Mountain Division (Light}
- 1st Brigade
- 2nd Brigade
- 27th Brigade (Orions)-- New York National Guard
- 82nd Airborne Division
- 82nd Aviation Brigade
- 325th Airborne Infantry Regiment
- 2nd Battalion 325th Airborne Infantry Regiment
- 3rd Battalion 325th Airborne Infantry Regiment
- 504th Parachute Infantry Regiment
- 1st Battalion 504th Parachute Infantry Regiment
- 3rd Battalion 504th Parachute Infantry Regiment
- 505th Parachute Infantry Regiment
- 1st Battalion 505th Parachute Infantry Regiment
- 2nd Battalion 505th Parachute Infantry Regiment
- 3rd Battalion 505th Parachute Infantry Regiment
- 101st Airborne Division (Air Assault) (Screaming Eagles)-- Fort Campbell, Kentucky
- XVIII Airborne Corps Artillery
- 18th Field Artillery Brigadet
- 2nd Armored Cavalry Regiment
- 16th Military Police Brigade (Airborne)
- 18th Aviation Brigade (Airborne)
- 20th Engineer Brigade (Combat)(Airborne)
- 35th Signal Brigade (Airborne)
- 108th Air Defense Artillery Brigade
- 229th Aviation Regiment (Attack)
- 1-229th Attack Helicopter Battalion
- 3-229th Attack Helicopter Regiment
- 525th Military Intelligence Brigade (Airborne)
See also:
- United States armed forces
- Special Operations Forces
- Comparative military ranks
External link
- Official website
- Army Decorations - for Valor or Service:[1]
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "United States Army."
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Copyright © Philip M. Parker, INSEAD. Terms of Use.