Eastern Army (Japan)
Field army
Unit nameEastern Army
Native name東部方面隊
Dates14 January 1960 – present
CountryJapan
GarrisonCamp Asaka, Asaka, Saitama
Current commanderLt. Gen. Naotada Moriyama

The Eastern Army (東部方面隊, Tōbu Hōmentai) is one of five active Armies of the Japan Ground Self-Defense Force headquartered at Camp Asaka in Asaka, Saitama Prefecture. Its responsibility is the defense of the Kantō and the Northern half of the Chūbu region.

Organization

  • Eastern Army, at Camp Asaka in Nerima
    • 1st Division, at Camp Nerima in Nerima, responsible for the defense of Tokyo and the Chiba, Ibaraki, Kanagawa, Saitama, Shizuoka and Yamanashi prefectures.[1]
      • 1st Infantry Regiment, at Camp Nerima in Nerima[2]
      • 32nd Infantry Regiment, at Camp Omiya in Saitama[2]
      • 34th Infantry Regiment, at Camp Itazuma in Gotemba[2]
    • 12th Brigade (Air Assault), at Camp Soumagahara in Shintō, responsible for the defense of Gunma, Nagano, Niigata and Tochigi prefectures.[3]
      • 2nd Infantry Regiment, at Camp Takada in Jōetsu[3]
      • 13th Infantry Regiment, at Camp Matsumoto in Matsumoto[3]
      • 30th Infantry Regiment, at Camp Shibata in Shibata[3]
    • Eastern Army Artillery Regiment, at Camp Kita Fuji in Oshino
      • 1st Artillery Battalion, at Camp Kita Fuji in Oshino
      • 2nd Artillery Battalion, at Camp Utsunomiya in Utsunomiya
      • Target Acquisition Battery, at Camp Kita Fuji in Oshino
    • Eastern Army Air Corps, at Camp Tachikawa in Tachikawa
      • 111th Aviation Squadron, at Kisarazu Airfield in Kisarazu
      • Eastern Army Helicopter Battalion, at Camp Tachikawa in Tachikawa
      • Eastern Army Air Traffic Control and Meteorological Company, iat Camp Tachikawa in Tachikawa
      • Eastern Army Airfield Maintenance Company, at Camp Tachikawa in Tachikawa
    • Eastern Army Combined (Training) Brigade, at Camp Takeyama in Yokosuka
      • 31st Infantry Regiment (Reserve), at Camp Takeyama in Yokosuka
      • 48th Infantry Regiment (Reserve), at Camp Soumagahara in Shintō
      • 3rd Non-Commissioned Officer Training Battalion, at Camp Itazuma in Gotemba
      • 117th Training Battalion, at Camp Takeyama in Yokosuka
      • Female Personnel Training Battalion, at Camp Asaka in Nerima
    • 1st Engineer Brigade, at Camp Koga in Koga
      • 4th Engineer Group (Construction), at Camp Zama in Sagamihara
      • 5th Engineer Group (Construction), at Camp Takada in Jōetsu
      • 101st Equipment Battalion, at Camp Koga in Koga
      • 301st Vehicle Company, at Camp Koga in Koga
      • 306th Engineer Company, at Camp Matsumoto in Matsumoto
      • 307th Engineer Company, at Camp Utsunomiya in Utsunomiya
    • Eastern Army Signals Regiment, at Camp Asaka in Asaka
      • 105th Command Post Signals Battalion, at Camp Asaka in Asaka
      • 105th Base Systems Signals Battalion, at Camp Asaka in Asaka
      • 304th Central Signals Company, at Camp Asaka in Asaka
    • Eastern Army Logistic Support, at Camp Asaka in Asaka
      • 101st General Support Battalion, at Camp Kasumigaura in Tsuchiura
      • 103rd Supply Battalion (Reserve), at Camp Kasumigaura in Tsuchiura
      • 104th General Support Battalion, at Camp Asaka in Asaka
      • 105th General Support Battalion, at Camp Fuji in Oyama
      • 102nd Engineer Support Battalion (supports the 1st Engineer Brigade), at Camp Koga in Koga
      • Eastern Army Transport Battalion, at Camp Asaka in Asaka
      • 102nd Explosive Ordnance Disposal Company, at Camp Asaka in Asaka
      • 301st Anti-Aircraft Support Company (supports the 2nd Anti-Aircraft Artillery Group), at Camp Matsudo in Matsudo
      • 301st Signals Support Company (supports the Eastern Army Signals Regiment), at Camp Asaka in Asaka
      • 302nd Ammunition Company (Reserve), at Camp Kasumigaura in Tsuchiura
      • 302nd Infantry Support Company (supports the 31st Infantry Regiment), at Camp Takeyama in Yokosuka
      • 303rd Infantry Support Company (supports the 48th Infantry Regiment), at Camp Soumagahara in Shintō
      • 306th Artillery Support Company (supports the Eastern Army Artillery Regiment), at Camp Kita Fuji in Oshino
      • Camp Fuji Schools Support Battalion, at Camp Fuji in Oyama
      • Anti-Aircraft Training Support Company (supports the Anti-Aircraft Artillery School), at Camp Shimizu in Chiba
      • Engineer Training Support Company (supports the Engineer School), at Camp Katsuta in Hitachinaka
      • Signals Training Support Company (supports the Signals and Cyber School), at Camp Kurihama in Yokosuka
    • 2nd Anti-Aircraft Artillery Group, at Camp Matsudo in Matsudo, with Type 3 Chū-SAMs
    • Eastern Army Intelligence Corps, at Camp Asaka in Asaka
    • Eastern Army Medical Corps, at Camp Asaka in Asaka
    • Eastern Army Command Post Training Support Company, at Camp Asaka in Asaka
    • Eastern Army Accounting Company, at Camp Asaka in Asaka
    • Eastern Army Band, at Camp Asaka in Asaka

References

  1. ^ "ja:編成" [Organization] (in Japanese). 1st Division GSDF Japan. Archived 1 November 2025 at the Wayback Machine. Retrieved 1 November 2025.
  2. ^ "ja:部隊紹介" [Unit Introduction] (in Japanese). 1st Division GSDF Japan. Archived 1 November 2025 at the Wayback Machine. Retrieved 1 November 2025.
  3. ^ "ja:第12旅団について" [About the 12th Brigade] (in Japanese). 陸上自衛隊第12旅団. Archived 1 November 2025 at the Wayback Machine. Retrieved 1 November 2025.