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Japanese Fourth Army

Japanese Fourth Army
Active June 24, 1904 - August 15, 1945 
Country Empire of Japan
Branch Imperial Japanese Army
Type Infantry
Role Corps
Garrison/HQ Bei'an, Manchukuo
Nickname(s) Hikari ( Light?)
Engagements
Russo-Japanese War
*Battle of Liaoyang
*Battle of Mukden
World War II
*Soviet invasion of Manchuria

The Japanese 4th Army (第4軍 Dai-yon gun?) was an army of the Imperial Japanese Army based in Manchukuo from the Russo-Japanese War until the end of World War II.

The Japanese 4th Army was initially raised on June 24, 1904 in the midst of the Russo-Japanese War under the command of General Nozu Michitsura out of various reserve elements, to provide support and additional manpower in the Japanese drive towards Mukden in the closing stages of the war against Imperial Russia. It was disbanded at Mukden on January 17, 1906 after the signing of the Treaty of Portsmouth and the end of the war.

After the start of the Second Sino-Japanese War, the Japanese Fourth Army was raised again as a garrison force to guard the northern borders of Manchukuo against possible incursions by the Soviet Red Army. It was based at Bei'an, the capital of a northern Manchukuo province of the same name, that was heavily fortified with various ground emplacements. The Fourth Army afterwards came under the operational command of the Japanese First Area Army under the overall command of the Kwantung Army. As the war situation in the southeast Asia and China fronts of World War II worsened against the Japanese, experienced men and equipment were siphoned off from the Fourth Army to reinforce other units, leaving it largely hollowed out by the start of 1945.


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