[PAR] [TLE] Battle of Hellzapoppin Ridge and Hill 600A [SEP] The Battle of Hellzapoppin Ridge and Hill 600A was a series of engagements fought in mid-December 1943 on Bougainville between forces of the United States Marine Corps and the Imperial Japanese Army.  Although minor in terms of casualties and in comparison to other battles in the campaign, the battle was the last significant action undertaken by the 3rd Marine Division on the island before they were replaced by United States Army soldiers from XIV Corps.  It resulted in the capture of the two positions by the Marines with the support of artillery and aircraft, and the withdrawal of the Japanese forces as the American perimeter, which had been established around Torokina, was expanded towards the Torokina River. [PAR] [TLE] Imperial Japanese Army [SEP] The Imperial Japanese Army (IJA; 大日本帝國陸軍 "Dai-Nippon Teikoku Rikugun"; "Army of the Greater Japanese Empire") 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 War, both of which were nominally subordinate to the Emperor of Japan as supreme commander of the army and the navy.  Later an Inspectorate General of Aviation became the third agency with oversight of the army.  During wartime or national emergencies, the nominal command functions of the emperor would be centralized in an Imperial General Headquarters (IGHQ), an ad-hoc body consisting of the chief and vice chief of the Army General Staff, the Minister of War, the chief and vice chief of the Naval General Staff, the Inspector General of Aviation, and the Inspector General of Military Training.
[PAR] [TLE] Battle of Hellzapoppin Ridge and Hill 600A [ SEP ] The Battle of Hellzapoppin Ridge and Hill 600A was a series of engagements fought in mid - December 1943 on Bougainville between forces of the United States Marine Corps and the Imperial Japanese Army . Although minor in terms of casualties and in comparison to other battles in the campaign , the battle was the last significant action undertaken by the 3rd Marine Division on the island before they were replaced by United States Army soldiers from XIV Corps . It resulted in the capture of the two positions by the Marines with the support of artillery and aircraft , and the withdrawal of the Japanese forces as the American perimeter , which had been established around Torokina , was expanded towards the Torokina River . [PAR] [TLE] Imperial Japanese Army [ SEP ] The Imperial Japanese Army ( IJA ; 大日本帝國陸軍 " Dai - Nippon Teikoku Rikugun " ; " Army of the Greater Japanese Empire " ) 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 War , both of which were nominally subordinate to the Emperor of Japan as supreme commander of the army and the navy . Later an Inspectorate General of Aviation became the third agency with oversight of the army . During wartime or national emergencies , the nominal command functions of the emperor would be centralized in an Imperial General Headquarters ( IGHQ ) , an ad - hoc body consisting of the chief and vice chief of the Army General Staff , the Minister of War , the chief and vice chief of the Naval General Staff , the Inspector General of Aviation , and the Inspector General of Military Training .
What division of the American armed forces fought the Imperial Japanese Army, also know as the "Dai-Nippon Teikoku Rikugun", or "Army of the Greater Japanese Empire", at Bougainville during World War Two?
What division of the American armed forces fought the Imperial Japanese Army , also know as the " Dai - Nippon Teikoku Rikugun " , or " Army of the Greater Japanese Empire " , at Bougainville during World War Two ?
Marine Corps
Marine Corps