The U.S. Army currently consists of 10 active divisions as well as several independent units. The force is in the process of growth, with four additional brigades scheduled to activate by 2013, with a total increase of 74,200 soldiers from January 2007. Each division will have four ground maneuver brigades, and will also include at least one aviation brigade as well as a fires brigade and a service support brigade. Additional brigades can be assigned or attached to a division headquarters based on its mission.

Within the Army National Guard and United States Army Reserve there are a further eight divisions, over fifteen maneuver brigades, additional combat support and combat service support brigades, and independent cavalry, infantry, artillery, aviation, engineer, and support battalions. The Army Reserve in particular provide virtually all psychological operations and civil affairs units.

Name	Headquarters	Subunits
1st Armored Division	Wiesbaden Army Airfield, Germany	2nd, 4th Heavy Brigade Combat Teams, 1st Stryker Brigade Combat Team and 3rd Infantry Brigade Combat Team at Fort Bliss.The 1st Armored Division Combat Aviation Brigade will arrive at Biggs Army Airfield on Fort Bliss sometime in 2011. The Division HQ will finish moving to Fort Bliss sometime in 2011.
1st Cavalry Division	Fort Hood, Texas	1st, 2nd, 3rd, 4th Heavy Brigade Combat Teams and Combat Aviation Brigade at Fort Hood.
1st Infantry Division	Fort Riley, Kansas	1st, 2nd Heavy Brigade Combat Teams, 4th Infantry Brigade Combat Team and Combat Aviation Brigade at Fort Riley, 3rd Infantry Brigade Combat Team at Fort Knox, Kentucky.
2nd Infantry Division	Camp Red Cloud, South Korea	1st Heavy Brigade Combat Team and Combat Aviation Brigade at Camp Humphreys and Camp Casey, South Korea, and 2nd 3rd and 4th and Stryker Brigade Combat Teams (SBCTs) at Fort Lewis, Washington.
3rd Infantry Division	Fort Stewart, Georgia	1st, 2nd Heavy Brigade Combat Teams and 4th Infantry Brigade Combat Team at Fort Stewart, Georgia, 3rd Heavy Brigade Combat Team at Fort Benning, Georgia, and Combat Aviation Brigade at Hunter Army Airfield, Georgia.
4th Infantry Division	Fort Carson, Colorado	1st, 2nd, 3rd Heavy brigade combat teams and 4th Infantry Brigade Combat Team at Fort Carson, Colorado. Combat Aviation Brigade at Fort Hood, Texas until 2011.
10th Mountain Division	Fort Drum, New York	1st, 2nd, 3rd Infantry Brigade Combat Teams and Combat Aviation Brigade at Fort Drum and 4th Infantry Brigade Combat Team at Fort Polk, Louisiana.
25th Infantry Division	Schofield Barracks, Hawaii	3rd Infantry Brigade Combat Team and 2nd Stryker Brigade Combat Team at Schofield Barracks, Combat Aviation Brigade at Wheeler Army Airfield, 1st Stryker Brigade Combat Team at Fort Wainwright, Alaska, and 4th Airborne Infantry Brigade Combat Team at Fort Richardson, Alaska.
82nd Airborne Division	Fort Bragg, North Carolina	1st, 2nd, 3rd, 4th Airborne Infantry Brigade Combat Teams and Combat Aviation Brigade at Fort Bragg.
101st Airborne Division	Fort Campbell, Kentucky	1st, 2nd, 3rd, 4th Infantry Brigade Combat Teams (air assault), 101st and 159th Combat Aviation Brigades at Fort Campbell.
170th Infantry Brigade	Baumholder, Germany	Two mechanized infantry battalions, one M1A1 Abrams battalion, one self-propelled 155mm field artillery battalion, one combat engineer battalion.
172nd Infantry Brigade	Grafenwöhr, Germany	Two mechanized infantry battalions, one M1A1 Abrams battalion, one self-propelled 155mm field artillery battalion, one combat engineer battalion.
173rd Airborne Brigade Combat Team	Vicenza, Italy	Two airborne infantry battalions, one cavalry squadron, one airborne field artillery battalion, one special troops battalion, and one support battalion.
2nd Cavalry Regiment	Vilseck, Germany	6 subordinate Squadrons: 1st (Stryker Infantry), 2nd (Stryker Infantry), 3rd (Stryker Infantry), 4th (Recon, Surveillance, Target Acquisition), Fires (6x3 155mm Towed Arty), & RSS (Logistical Support); 5 Separate Troops/Companies: Regimental Headquarters Troop, Military Intelligence Troop, Signal Troop, Engineer Troop, and Anti-Armor Troop.
3rd Armored Cavalry Regiment	Fort Hood, Texas	Three armored cavalry squadrons, one aviation squadron, and one support squadron. Converting to a Stryker Brigade Combat Team.
11th Armored Cavalry Regiment	Fort Irwin, California	Serves as the Opposing Force (OPFOR) at the National Training Center (NTC). Multi-compo Generating Force HBCT.