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The was a headquarters organization and general army of the
Imperial Japanese Army The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emperor o ...
, established to control all land and
air The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing f ...
units stationed within Japan proper,
Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...
and
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
during
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
.


History

The General Defense Command was established on July 5, 1941 under the direct command of the
Emperor An emperor (from la, imperator, via fro, empereor) is a monarch, and usually the sovereignty, sovereign ruler of an empire or another type of imperial realm. Empress, the female equivalent, may indicate an emperor's wife (empress consort), ...
via the
Imperial General Headquarters The was part of the Supreme War Council and was established in 1893 to coordinate efforts between the Imperial Japanese Army and Imperial Japanese Navy during wartime. In terms of function, it was approximately equivalent to the United States ...
. For administrative, recruiting and accounting purposes, Japan was divided into six army districts, each with a
garrison A garrison (from the French ''garnison'', itself from the verb ''garnir'', "to equip") is any body of troops stationed in a particular location, originally to guard it. The term now often applies to certain facilities that constitute a mil ...
force equivalent to an
army corps Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was first named as such in 1805. The size of a corps varies great ...
: *
Eastern District Army The was a field army of the Imperial Japanese Army responsible for the defense of the Kantō region and northern Honshū during the Pacific War. It was one of the regional commands in the Japanese home islands reporting to the General Defense ...
– HQ in Tokyo and responsible for the
Kantō region The is a geographical area of Honshu, the largest island of Japan. In a common definition, the region includes the Greater Tokyo Area and encompasses seven prefectures: Gunma, Tochigi, Ibaraki, Saitama, Tokyo, Chiba and Kanagawa. Slight ...
and northern
Honshū , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separa ...
* Western District Army – HQ in
Fukuoka is the sixth-largest city in Japan, the second-largest port city after Yokohama, and the capital city of Fukuoka Prefecture, Japan. The city is built along the shores of Hakata Bay, and has been a center of international commerce since ancie ...
and responsible for southwestern Honshū,
Shikoku is the smallest of the four main islands of Japan. It is long and between wide. It has a population of 3.8 million (, 3.1%). It is south of Honshu and northeast of Kyushu. Shikoku's ancient names include ''Iyo-no-futana-shima'' (), '' ...
and the
Ryukyu Islands The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonaguni ...
. * Northern District Army – HQ in
Sapporo ( ain, サッ・ポロ・ペッ, Satporopet, lit=Dry, Great River) is a city in Japan. It is the largest city north of Tokyo and the largest city on Hokkaido, the northernmost main island of the country. It ranks as the fifth most populous city ...
and responsible for
Hokkaidō is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The la ...
and
Karafuto Karafuto Prefecture ( ja, 樺太庁, ''Karafuto-chō''; russian: Префектура Карафуто, Prefektura Karafuto), commonly known as South Sakhalin, was a prefecture of Japan located in Sakhalin from 1907 to 1949. Karafuto became t ...
. *
Central District Army The was a field army of the Imperial Japanese Army responsible for the defense of the Japanese home islands during the Pacific War. It was one of the regional commands in the Japanese home islands reporting to the General Defense Command. Comman ...
– HQ in
Osaka is a designated city in the Kansai region of Honshu in Japan. It is the capital of and most populous city in Osaka Prefecture, and the third most populous city in Japan, following Special wards of Tokyo and Yokohama. With a population of 2. ...
and responsible for central Honshū. *
Chosen Army The was an army of the Imperial Japanese Army that formed a garrison force in Korea under Japanese rule. The Korean Army consisted of roughly 350,000 troops in 1914. History Japanese forces occupied large portions of the Empire of Korea dur ...
– HQ in
Keijo Keijo may refer to: *Keijō, a former name of Seoul, South Korea *Keijo (given name) Keijo is a masculine Finnish given name. Notable people with the name include: * Keijo Huusko (born 1980), Finnish footballer * Keijo Kuusela (1921–1984), Finni ...
and responsible for
Korea Korea ( ko, 한국, or , ) is a peninsular region in East Asia. Since 1945, it has been divided at or near the 38th parallel, with North Korea (Democratic People's Republic of Korea) comprising its northern half and South Korea (Republic o ...
* Taiwan Army – HQ in
Taihoku Taihoku Prefecture (台北州; ''Taihoku-shū'') was an administrative division of Taiwan created in 1920, during Japanese rule. The prefecture consisted of modern-day Keelung, New Taipei City, Taipei and Yilan County. Its government office, ...
and responsible for
Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...
. The General Defense Command was also responsible for
anti-aircraft Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...
defenses, and for organizing
civil defense Civil defense ( en, region=gb, civil defence) or civil protection is an effort to protect the citizens of a state (generally non-combatants) from man-made and natural disasters. It uses the principles of emergency operations: prevention, miti ...
training. On April 8, 1945, in preparation for
Operation Downfall Operation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II. The planned operation was canceled when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, th ...
(or in Japanese terminology), the General Defense Command was dissolved, and its duties assumed by the new
First General Army ''Dai-ichi Sōgun'' , image = , caption = , dates = April 8, 1945 – November 30, 1945 , country = Empire of Japan , allegiance = ...
and
Second General Army ''Dai-ni Sōgun'' , image = , caption = , dates = April 8, 1945-November 30, 1945 , country = Empire of Japan , allegiance = Empe ...
.


List of Commanders


Commanding officer


Chief of Staff


See also

* Armies of the Imperial Japanese Army


References


Books

* * * * * *


External links

*{{cite web , last = Wendel , first = Marcus , url = http://www.axishistory.com/index.php?id=6754 , title = Axis History Factbook , work = General Defense Command Army groups of Japan Military units and formations established in 1941 Military units and formations disestablished in 1945