The is one of five active

Armies An army (from Old French ''armee'', itself derived from the Latin verb ''armāre'', meaning "to arm", and related to the Latin noun ''arma'', meaning "arms" or "weapons"), ground force or land force is a fighting force that fights primarily on ...

of the

Japan Ground Self-Defense Force The Japan Ground Self-Defense Force ( ja, 陸上自衛隊, Rikujō Jieitai), , also referred to as the Japanese Army, is the land warfare branch of the Japan Self-Defense Forces. Created on July 1, 1954, it is the largest of the three service b ...

headquartered at

Camp Asaka Camp Asaka is a base of the Japan Ground Self-Defense Force. It lies in four municipalities: Nerima, Tokyo; Asaka, Saitama; Wako, Saitama; and Niiza, Saitama. It serves as the headquarters of the Eastern Army. The camp was originally the site ...

in Asaka,

Saitama Prefecture is a landlocked prefecture of Japan located in the Kantō region of Honshu. Saitama Prefecture has a population of 7,338,536 (1 January 2020) and has a geographic area of 3,797 km2 (1,466 sq mi). Saitama Prefecture borders Tochigi Prefecture ...

. Its responsibility is the defense of the Kantō and the Northern half of the Chūbu region.

Organization

Japan Ground Self-Defence Forces Eastern Army OrBat

Eastern Army, at

in Asaka ** JGSDF 1st Division

1st Division, at Camp Nerima in Nerima, responsible for the defense of

Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, with an estimated 37.468 ...

and the

Chiba Chiba may refer to: Places China * (), town in Jianli County, Jingzhou, Hubei Japan * Chiba (city), capital of Chiba Prefecture ** Chiba Station, a train station * Chiba Prefecture, a sub-national jurisdiction in the Greater Tokyo Area on ...

, Ibaraki,

Kanagawa is a Prefectures of Japan, prefecture of Japan located in the Kantō region of Honshu. Kanagawa Prefecture is the List of Japanese prefectures by population, second-most populous prefecture of Japan at 9,221,129 (1 April 2022) and third-dens ...

, Saitama,

Shizuoka Shizuoka can refer to: * Shizuoka Prefecture, a Japanese prefecture * Shizuoka (city), the capital city of Shizuoka Prefecture * Shizuoka Airport * Shizuoka Domain, the name from 1868 to 1871 for Sunpu Domain, a predecessor of Shizuoka Prefecture ...

and Yamanashi prefectures. ** JGSDF 12th Brigade

12th Brigade (

Air Assault Air assault is the movement of ground-based military forces by vertical take-off and landing (VTOL) aircraft—such as the helicopter—to seize and hold key terrain which has not been fully secured, and to directly engage enemy forces behind e ...

), at Camp Soumagahara in

Shintō Shinto () is a religion from Japan. Classified as an East Asian religion by scholars of religion, its practitioners often regard it as Japan's indigenous religion and as a nature religion. Scholars sometimes call its practitioners ''Shintoist ...

, responsible for the defense of

Gunma is a prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 October 2019) and has a geographic area of 6,362 km2 (2,456 sq mi). Gunma Prefecture borders Niigata Prefecture and Fukushima P ...

Nagano Nagano may refer to: Places * Nagano Prefecture, a prefecture in Japan ** Nagano (city), the capital city of the same prefecture *** Nagano 1998, the 1998 Winter Olympics *** Nagano Olympic Stadium, a baseball stadium in Nagano *** Nagano Universi ...

, Niigata and Tochigi prefectures. ** 1st Engineer Brigade, at Camp Koga in

Koga KOGA is a Dutch bicycle manufacturer based in Heerenveen, Friesland. The company is known for its long time partnership with Japanese frame manufacturer Miyata, producing bicycles and sponsoring racing teams under the brand name Koga Miyata. As ...

*** 4th Engineer Group (Construction), at Camp Zama in

Sagamihara is a city in Kanagawa Prefecture, Japan. , the city has an estimated population of 723,470, with 334,812 households, and a population density of 1,220 persons per km2. The total area of the city is . Sagamihara is the third-most-populous city ...

*** 5th Engineer Group (Construction), at Camp Takada in Jōetsu *** 101st Equipment Company, at Camp Koga in Koga *** 301st Vehicle Company, at Camp Koga in Koga *** 306th Engineer Company, at Camp Matsumoto in

Matsumoto Matsumoto (松本 or 松元, "base of the pine tree") may refer to: Places * Matsumoto, Nagano (松本市), a city ** Matsumoto Airport, an airport southwest of Matsumoto, Nagano * Matsumoto, Kagoshima (松元町), a former town now part of the c ...

*** 307th Engineer Company, at Camp Utsunomiya in

Utsunomiya is the prefectural capital city of Tochigi Prefecture in the northern Kantō region of Japan. , the city had an estimated population of 519,223, and a population density of . The total area of the city is . Utsunomiya is famous for its ''gyoza'' ...

** Eastern Army Combined (Training) Brigade, at Camp Takeyama in

Yokosuka is a city in Kanagawa Prefecture, Japan. , the city has a population of 409,478, and a population density of . The total area is . Yokosuka is the 11th most populous city in the Greater Tokyo Area, and the 12th in the Kantō region. The city ...

*** 31st Infantry Regiment, at Camp Takeyama in Yokosuka *** 48th Infantry Regiment, at Camp Soumagahara in

*** 3rd Basic Training Battalion, at Camp Itazuma in

Gotemba is a city on the southeastern flank of Mount Fuji in Shizuoka Prefecture, Japan. , the city had an estimated population of 88,370 in 36,096 households, and a population density of 450 persons per km². The total area of the city is . Geography ...

*** 117th Training Battalion, at Camp Takeyama in Yokosuka *** Woman Army Corps Training Unit, at Camp Asaka in Asaka ** 2nd Anti-Aircraft Artillery Group, at Camp Matsudo in

Matsudo 260px, Matsudo City Hall is a city in Chiba Prefecture, Japan. , the city had an estimated population of 498,575 in 242,981 households and a population density of 8100 persons per km². The total area of the city is . Geography Matsudo is loca ...

, with

Type 3 Chū-SAM Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * Ty ...

s ** Eastern Army Aviation Group, at Camp Tachikawa in

Tachikawa 250px, Showa Memorial Park is a city located in the western portion of Tokyo Metropolis, Japan. , the city had an estimated population of 184,383 in 93,428 households, and a population density of 7600 persons per km2. The total area of the ci ...

*** 4th Anti-tank Helicopter Battalion, at Camp Kisarazu in

Kisarazu is a city located in Chiba Prefecture, Japan. , the city had an estimated population of 136,023 in 63,431 households and a population density of 980 persons per km2. The total area of the city is . Geography Kisarazu is located in the midwest ...

*** Eastern Army Helicopter Battalion, at Camp Tachikawa in Tachikawa *** Eastern Army Meteorological Company, at Camp Tachikawa in Tachikawa *** Logistic Support Battalion, at Camp Tachikawa in Tachikawa ** Eastern Army Signal Group, at Camp Asaka in Asaka *** 105th Signal Battalion, at Camp Asaka in Asaka *** 105th Command Center Signal Battalion, at Camp Asaka in Asaka *** 304th Central Communication Company, at Camp Asaka in Asaka ** Eastern Army Logistic Support Troop, at Camp Asaka in Asaka ** Kantō Logistic Depot, at Camp Kasumigaura in

Tsuchiura is a Cities of Japan, city located in Ibaraki Prefecture, Japan. , the city had an estimated population of 138,033 in 60,069 households and a population density of 1123 persons per km2. The percentage of the population aged over 65 was 29.7%. Th ...

** Eastern Army Finance Service, at Camp Asaka in Asaka ** Eastern Army Medical Service, at Camp Asaka in Asaka ** Eastern Army Command Post Training Support, at Camp Asaka in Asaka ** Eastern Army

Intelligence Intelligence has been defined in many ways: the capacity for abstraction, logic, understanding, self-awareness, learning, emotional knowledge, reasoning, planning, creativity, critical thinking, and problem-solving. More generally, it can b ...

Analysis, at Camp Asaka in Asaka ** Eastern Army Band, at Camp Asaka in Asaka

External links

Eastern Army Homepage
''(Japanese)'' {{JGSDF Units Armies of the Japan Ground Self-Defense Force Military units and formations established in 1960