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Imperial Japanese Army
大日本帝國陸軍
Dai-Nippon Teikoku Rikugun
War flag of the Imperial Japanese Army.svg
The ensign of the Imperial Japanese Army
Active 1868–1945
Country  Empire of Japan
Allegiance Emperor of Japan
Type Army
Role Military ground force
Size 6,095,000 men at peak
Nickname(s) "IJA"
Engagements
Commanders
Ceremonial chief Emperor of Japan
Emperor Meiji
Emperor Taishō
Emperor Shōwa
Notable
commanders
Yamagata Aritomo
Ōyama Iwao
Prince Kan'in Kotohito
Hajime Sugiyama
Hideki Tojo
Yasuji Okamura
Shunroku Hata
Tadamichi Kuribayashi
Tomoyuki Yamashita
Masaharu Homma

The Imperial Japanese Army (IJA) was Japan's main ground fighting force. It existed from 1868 to 1945. Its full name in Japanese was Dai-Nippon Teikoku Rikugun, meaning "Army of the Greater Japanese Empire."

The IJA was controlled by the Imperial Japanese Army General Staff Office and the Ministry of War. Both of these groups reported to the Emperor of Japan. The Emperor was the supreme commander of both the army and the navy. The IJA played a big role in Japan's history, especially during World War II.

How the Army Started (1868-1871)

In the mid-1800s, Japan did not have one single national army. The country was divided into many small areas called han, which were like feudal states. The Tokugawa shogunate had ruled Japan since 1603. Their army was large, but they needed help from other local armies to control the country.

Japan had been mostly closed off from the world for two centuries. When it opened up, it led to big changes. This included the Meiji Restoration and the Boshin War in 1868. After these events, Japan decided to create a modern, unified army.

The Imperial Japanese Army was officially ended at the end of World War II. Today, Japan's constitution has a rule, Article 9. This rule says that Japan cannot use military force to solve problems with other countries.

Joining the Army

In 1873, a new law was passed about joining the military. This law made it mandatory for all men in Japan to serve in the army.

The law said that men had to serve for a total of seven years. This included three years in the regular army, two years in the first reserve, and two more years in the second reserve. All healthy men between 17 and 40 years old were also part of a national guard. This group would only be called to serve if Japan was attacked or invaded.

Senior private, infantry, Imperial Japanese army in field service dress as worn on the expedition to Kiaochow in 1914, in the London Imperial War Museum
Imperial Japanese Army uniform worn during the expedition to Kiaochow in 1914.

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See also

Kids robot.svg In Spanish: Ejército Imperial Japonés para niños

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