United States Army

The United States Army (USA) is the primary land service branch of the United States Department of Defense.

Organization

Operational Force

The U.S. Army's operational force before the theater service component-level consists of 5 active corps (I Corps, III Corps, V Corps, VII Airmobile Corps, XIV Corps) controlling 16 active duty divisions, 8 Army National Guard divisions, and many separate combat commands, brigades, and regiments. There are an additional 4 corps in the Army Organized Reserve with oversight of 20 cadre divisions to be expanded with draftees upon mobilization.

• I Corps (Reforc Corps A)
  I Corps
  (Reforc Corps A)
• IX Corps (Forward Deployed to China)
  IX Corps
  (Forward Deployed to China)

I Corps

• 4th Armored Division
• 11th Airborne Division (Composite Airborne/Airmobile)
• 24th Infantry Division (Light) (Amphibious)
• 25th Infantry Division (Light) (Jungle)
• 40th Armored Division (CA ARNG)

III Corps

• 1st Infantry Division (Mechanized)
• 2nd Armored Division
• 27th Armored Division (NY ARNG)
• 29th Infantry Division (Mechanized) (VI ARNG)
• 50th Armored Division (NJ ARNG)

V Corps

• 4th Infantry Division (Mechanized)
• 71st Infantry Division (Light, Arctic)
• 30th Armored Division (TN ARNG)
• 36th Infantry Division (Mechanized) (TX ARNG)
• 45th Infantry Division (Mechanized) (OK ARNG)

VII Airmobile Corps

• 8th Infantry Division (Mechanized)
• 82nd Airborne Division (Airborne)
• 101st Airborne Division (Composite Airborne/Airmobile)
• 2nd Cavalry Division (Motorized)

IX Corps

• 1st Armored Division
• 1st Cavalry Division (Motorized)
• 5th Infantry Division (Mechanized)
• 7th Infantry Division (Mechanized)
• 34th Infantry Division (Motorized) (MN ARNG)