アメリカ陸軍総司令部

アメリカ陸軍総軍（FORSCOM ）は、アメリカ陸軍最大の司令部でした。国防総省の統合戦闘司令部に地上部隊を提供していました。FORSCOMの本部はノースカロライナ州フォートブラッグにあり、75万人を超える現役陸軍、陸軍予備役、陸軍州兵の兵士で構成されていました。FORSCOMは、1973年7月1日に旧大陸軍司令部（CONARC）から創設され、CONARCは陸軍野戦軍と陸軍地上軍を引き継いでいました。

FORSCOMは2025年12月5日に解散され、同時に陸軍は米国陸軍西半球司令部（USAWHC）を設立した。^{[ 2 ]}

1942年当時、陸軍は陸軍地上部隊、陸軍兵站部隊、および補給部隊に分割されていた。

1945年8月30日、陸軍参謀総長ジョージ・マーシャル将軍は、陸軍省の組織を見直すため、アレクサンダー・M・パッチ中将を委員長とする委員会を設置した。委員会は同年10月18日に参謀総長に勧告を提出した。勧告内容は、技術職は継続し、輸送部隊を恒久化すること、財務部を第8の技術職とすることであった。各軍種司令部は廃止され、その機能は陸軍に移管される。陸軍勤務部隊も廃止され、その参謀部は陸軍省参謀本部に移管される。^{[ 3 ]}

これらの勧告に従い、1946年6月11日、陸軍勤務部隊と9つの勤務司令部が廃止された。勤務司令部は6つの野戦軍に置き換えられた。これらの6つの軍管区は、名称は似ているものの、地理的な区分ではなく機能的な区分に基づいて運営され、おおよそ旧軍団管区の境界に沿っていた。陸軍地上部隊はワシントンDCからフォート・モンローに移転した。

• ニューヨーク州ニューヨーク市のフォート・ジェイに司令部を置く第1軍は、メイン州、ニューハンプシャー州、バーモント州、マサチューセッツ州、ロードアイランド州、コネチカット州、ニュージャージー州、ニューヨーク州、デラウェア州を管轄していた。
• メリーランド州ボルチモアに司令部を置く第2軍は、ペンシルベニア州、メリーランド州、バージニア州、ウェストバージニア州、オハイオ州、インディアナ州、ケンタッキー州を管轄していた。
• 第三軍は、アトランタ中心部の賃貸オフィススペースに本部を置き、1946年にはジョージア州アトランタのフォート・マクファーソンに本部を置いた。その管轄地域はノースカロライナ州、サウスカロライナ州、ジョージア州、フロリダ州、アラバマ州、テネシー州、ミシシッピ州であった。
• テキサス州サンアントニオのサム・ヒューストン砦に司令部を置く第4軍は、テキサス州、アーカンソー州、ルイジアナ州、オクラホマ州、ニューメキシコ州を管轄していた。
• Fifth Army, headquartered at Fort Sheridan near Chicago, Illinois included IL, MI, WI, MN, IA, MO, KS, NE, ND, SD, WY and CO.
• Sixth Army, headquartered at Presidio of San Francisco, California included WA, OR, ID, MT, UT, NV and CA.^[4]

In March 1948, a large-scale reorganization of the Department of the Army created the Office of the Chief of Army Field Forces (OCAFF) at Fort Monroe and placed the armies and installations in the continental United States directly under departmental control.^[5] Seven years later, the recommendations of the Davis Committee were implemented, establishing U.S. Continental Army Command (CONARC) to carry out both training and operations.

In 1973, forces in the United States were split between two new commands, U.S. Army Forces Command (FORSCOM) and U.S. Army Training and Doctrine Command (TRADOC). FORSCOM assumed CONARC's responsibility for the command and collective training of all divisions and corps in the continental U.S. and for the installations where they were based. To do this it had the help of various regional numbered army headquarters, First Army, Third Army (until 1974) Fourth Army, Fifth Army, and Sixth Army, at various times.

In 1987, FORSCOM was given the status of a "specified command", or almost equal to a unified combatant command, with a broad and continuing mission, but composed solely of Army forces. Like the unified commands, the specified commands reported directly to the Joint Chiefs of Staff, instead of their respective service chiefs.^[6] Fourth Army cased its colors and was inactivated for the last time in 1991. FORSCOM lost its specified status in 1993.

In October 1994, the United States Army Aviation Center asked the United States Army Force Integration Support Agency (USAFISA) to review the U.S. Army Air Traffic Control Activity.^[7] The Army Aviation Center wanted to make sure that its limited air traffic control (ATC) resources were being properly used. USAFISA concluded that the planning of ATC in the mid-1980s, part of creating the then-new Aviation Branch, had never been properly incorporated. ATC skills and services were eroding to the point of endangering aviation safety. As a result, General Eric Shinseki, then the Vice Chief of Staff, approved the concept of a separate command for air traffic services (ATS). On August 28, 2003, Army Traffic Services Command (ATSC) was formally activated and relocated from Fort McPherson to Fort Rucker.^[8]

Sixth Army was headquartered at the Presidio of San Francisco. It was eventually inactivated in June 1995.^[9]

In 2004, Fifth Army transferred its Reserve Component preparation obligations to First Army, and became responsible for homeland defense and Defense Support of Civil Authorities (DSCA) as United States Army North, the Army Service Component Command of United States Northern Command.

Following the recommendations of the 2005 Base Realignment and Closure Commission, FORSCOM Headquarters moved from Fort McPherson, Georgia to a building at Fort Bragg, North Carolina, in June 2011. The Command hosted a "Casing of the Colors" ceremony on 24 June 2011 at Fort McPherson, and an "Uncasing of Colors" on 1 August 2011 at Fort Bragg.

In late April and early May 2025, the United States Department of Defense and the United States Department of the Army announced the establishment of the United States Army Western Hemisphere Command (USAWHC) as part of the Army’s Continuous Transformation initiative. Effective late 2025, USAWHC will consolidate United States Army Forces Command (FORSCOM), United States Army North (ARNORTH), and United States Army South (ARSOUTH) into a single four-star command.

USAWHCは、米国北方軍（USNORTHCOM）と米国南方軍（USSOUTHCOM）の両方の陸軍構成軍司令部（ASCC）として機能し、これまで米陸軍の作戦、国土防衛、北米、中南米、カリブ海地域における安全保障協力に関して、3つの米陸軍司令部間で分担されていたすべてのタイトルX（10）に基づく責任を引き継ぎます。この統合により、米陸軍部隊は地域パートナーシップの優先事項により適切に整合されます。

FORSCOMは現在、米陸軍予備役軍団、第1軍、および3つの現役軍団を指揮している。

アメリカ陸軍予備役司令部（USARC）は、FORSCOMの主要な下位司令部です。ノースカロライナ州フォートブラッグのFORSCOMと同じ建物に本部を置いています^{[ 10 ]。}アメリカ本土のすべてのアメリカ陸軍予備役部隊を指揮しますが、特殊作戦軍（USSOCOM）に配属されている部隊は除きます。

イリノイ州ロックアイランド兵器廠に所在する第1アメリカ陸軍は、FORSCOM（米陸軍総軍）傘下の陸軍予備役および州兵部隊に対する訓練、動員、展開支援を担当している。この任務は、アメリカ本土とプエルトリコの両方を管轄している。

FORSCOMは3つの陸軍軍団を指揮している。それらは、フォート・ノックスに駐屯する第5軍団、テキサス州フォート・フッドに駐屯する第3軍団、ノースカロライナ州フォート・ブラッグに駐屯する第18空挺軍団である。これら3つの軍団は、合計9個師団、1個騎兵連隊、様々な種類の37個の支援旅団、その他多数の軍団戦闘部隊、戦闘支援部隊、戦闘後方支援部隊で構成されている。

陸軍州兵は、陸軍司令部に対し、8個州兵戦闘師団、15個旅団、および広範な戦闘支援部隊と戦闘後方支援部隊を提供している。

現在、米陸軍州兵軍司令部（FORSCOM）の兵力は約35万1000人である。州兵を現役の連邦軍に動員すれば、FORSCOMの総兵力は陸軍の地上戦闘部隊の約3分の2に達することになる。

• アメリカ陸軍予備役司令部、ノースカロライナ州フォートブラッグ
• アメリカ第1軍、ロックアイランド兵器廠、イリノイ州
  • 第1軍師団東部、州 フォートノックス
    • 第4騎兵旅団、ケンタッキー州フォートノックス
    • 第72野戦砲兵旅団、フォート・ディックス、ニュージャージー州
    • 第87陸軍予備役支援司令部、ホレス・B・ハンソン米国陸軍予備役センター、アラバマ州
    • 157th Infantry Brigade, Camp Atterbury, IN
    • 158th Infantry Brigade, Camp Shelby, MS
    • 174th Infantry Brigade, Fort Drum, NY
    • 177th Armored Brigade, Camp Shelby, MS
    • 188th Infantry Brigade, Fort Stewart, GA
  • First Army Division West, Fort Hood, TX
    • 5th Armored Brigade, Fort Bliss, TX
    • 85th Army Reserve Support Command, COL Paul G. Schulstad United States Army Reserve Center, IL
    • 120th Infantry Brigade, Fort Hood, TX
    • 166th Aviation Brigade, Fort Hood, TX
    • 181st Infantry Brigade, Fort McCoy, WI
    • 189th Infantry Brigade, Fort Lewis, WA
    • 402nd Field Artillery Brigade, Fort Bliss, TX
• III Armored Corps, Fort Hood, TX
  • 1st Infantry Division, Fort Riley, KS
    • 1st Armored Brigade Combat Team
    • 2nd Armored Brigade Combat Team
    • 1st Infantry Division Artillery
    • Combat Aviation Brigade, 1st Infantry Division
    • 1st Sustainment Brigade
  • 1st Cavalry Division, Fort Hood, TX
    • 1st Armored Brigade Combat Team
    • 2nd Armored Brigade Combat Team
    • 3rd Armored Brigade Combat Team
    • 1st Cavalry Division Artillery
    • Combat Aviation Brigade, 1st Cavalry Division
    • 1st Cavalry Division Sustainment Brigade
  • 1st Armored Division, Fort Bliss, TX
    • 1st Armored Brigade Combat Team
    • 2nd Armored Brigade Combat Team
    • 3rd Armored Brigade Combat Team
    • 1st Armored Division Artillery
    • Combat Aviation Brigade, 1st Armored Division
    • 15th Sustainment Brigade
  • 11th Signal Brigade, Fort Hood, TX
  • 75th Field Artillery Brigade, Fort Sill, OK
  • 36th Engineer Brigade, Fort Hood, TX
  • 3rd Cavalry Regiment, Fort Hood, TX
  • 504th Military Intelligence Brigade, Fort Hood, TX
  • 89th Military Police Brigade, Fort Hood, TX
  • 1st Medical Brigade, Fort Hood, TX
  • 13th Sustainment Command, Fort Hood, TX
• V Corps (United States), Poznań (Poland)
  • 2nd Cavalry Regiment, Vilseck, Germany
    • Regimental Headquarters and Headquarters Troop "Vipers"
    • 1st Squadron 2nd Cavalry Regiment "War Eagles"
    • 2nd Squadron 2nd Cavalry Regiment "Cougars"
    • 3rd Squadron 2nd Cavalry Regiment "Wolfpack"
    • 4th Squadron 2nd Cavalry Regiment "Saber" (Reconnaissance, Surveillance, and Target Acquisition Squadron)
    • Regimental Engineer Squadron 2nd Cavalry Regiment "Pioneers"
    • Field Artillery Squadron 2nd Cavalry Regiment "Artillery Hell"
    • Regimental Support Squadron 2nd Cavalry Regiment "Muleskinners"
  • 41st Field Artillery Brigade, Grafenwöhr (Germany)
  • 12th Combat Aviation Brigade, Ansbach (Germany)
  • Atlantic Resolve rotational units
    • Rotational Heavy Division in Bolesławiec (Poland)
      • 2 × Rotational Armored Brigade Combat Teams
      • 1 × Rotational Division Artillery
      • 1 × Rotational Combat Aviation Brigade
      • 1 × Rotational Sustainment Brigade
• XVIII Airborne Corps, Fort Bragg, NC
  • 3rd Infantry Division, Fort Stewart, GA
    • 1st Armored Brigade Combat Team
    • 2nd Armored Brigade Combat Team
    • 48th Infantry Brigade Combat Team (Georgia Army National Guard)
    • 3rd Infantry Division Artillery
    • Combat Aviation Brigade, 3rd Infantry Division
    • 3rd Sustainment Brigade
  • 10th Mountain Division, Fort Drum, NY
    • 1st Infantry Brigade Combat Team
    • 2nd Infantry Brigade Combat Team
    • 3rd Infantry Brigade Combat Team, Fort Polk, LA
    • 10th Mountain Division Artillery
    • Combat Aviation Brigade, 10th Mountain Division
    • 10th Sustainment Brigade
  • 82nd Airborne Division, Fort Bragg, NC
    • 1st Infantry Brigade Combat Team (Airborne)
    • 2nd Infantry Brigade Combat Team (Airborne)
    • 3rd Infantry Brigade Combat Team (Airborne)
    • 82nd Airborne Division Artillery
    • Combat Aviation Brigade, 82nd Airborne Division
    • 82nd Sustainment Brigade
  • 101st Airborne Division, Fort Campbell, KY
    • 1st Infantry Brigade Combat Team (Air Assault)
    • 2nd Infantry Brigade Combat Team (Air Assault)
    • 3rd Infantry Brigade Combat Team (Air Assault)
    • 101st Airborne Division Artillery
    • Combat Aviation Brigade, 101st Airborne Division
    • 101st Sustainment Brigade
  • 18th Field Artillery Brigade, Fort Bragg, NC
  • 20th Engineer Brigade, Fort Bragg, NC
  • 16th Military Police Brigade, Fort Bragg, NC
  • 3rd Sustainment Command (Expeditionary), Fort Bragg, NC
  • 7th Transportation Brigade, Fort Eustis, VA
  • 525th Military Intelligence Brigade, Fort Bragg, NC
  • 35th Signal Brigade, Fort Gordon, GA
  • 44th Medical Brigade, Fort Bragg, NC
• Security Force Assistance Command, Fort Bragg, NC
  • 1st Security Force Assistance Brigade, Fort Benning, GA
  • 2nd Security Force Assistance Brigade, Fort Bragg, NC
  • 3rd Security Force Assistance Brigade, Fort Hood, TX
  • 4th Security Force Assistance Brigade, Fort Carson, CO
  • 5th Security Force Assistance Brigade, Joint Base Lewis-McChord, WA
  • 54th Security Force Assistance Brigade (National Guard)
• 20th CBRNE Command, Aberdeen Proving Ground, MD
  • 48th Chemical Brigade, Fort Hood, TX
  • 52nd Ordnance Group (EOD), Fort Campbell, KY
  • 71st Ordnance Group (EOD), Fort Carson, CO
• 32nd Army Air & Missile Defense Command Fort Bliss, TX
  • 11th Air Defense Artillery Brigade, Fort Bliss, TX
  • 31st Air Defense Artillery Brigade, Fort Sill, OK
  • 69th Air Defense Artillery Brigade, Fort Hood, TX
  • 108th Air Defense Artillery Brigade, Fort Bragg, NC
• Air Traffic Services Command,Fort Rucker, AL
• 6th Medical Logistics Management Center, Fort Bragg, NC (direct reporting unit)

The current Commanding General is General (United States)Andrew P. Poppas, who assumed the role in July 2022. The Deputy Commanding General is Lieutenant GeneralStephen G. Smith (since April 2024) and the Command Sergeant Major CSM Nema Mobarakzadeh (Mobar) (since May 2024).

Equivalent operations commands in the U.S. Armed Forces

• United States Fleet Forces Command
• United States Marine Corps Forces Command
• Air Combat Command
• Space Operations Command

• "History of the Unified Command Plan, 1946–1977"(PDF). 20 December 1977. Archived from the original(PDF) on 28 May 2010. Retrieved 21 August 2010.
• Manoeuvre and Firepower: The Evolution of Divisions and Separate Brigades. Army Lineage Series. United States Army Center of Military History. 1998. 60-14. Archived from the original on 26 December 2012.
• Shalett, Sidney (14 May 1946). "Army is Revamped in Economy Drive". The New York Times.
• James Williams, "A history of Army aviation : from its beginnings to the War on Terror," New York, iUniverse, 2005

^[1][2][3][4]

• U.S Army Forces Command Homepage