The 100th Infantry Battalion combined with a regiment composed of men of Japanese ancestry who fought primarily in what war?
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100th Infantry Battalion (United States) The 100th Infantry Battalion is the only infantry unit in the United States Army Reserve. In World War II, the then-primarily Nisei battalion was composed largely of former members of the Hawaii Army National Guard. The 100th saw heavy combat during World War II before and after combining with the 442nd Infantry Regiment, another mostly Nisei military unit, into a single fighting combat team. Based at Fort Shafter, Honolulu, Hawaii, the 100th Battalion has reservists from Hawaii, American Samoa, Guam and Saipan, and has deployed to Iraq and Kuwait. The unit was unofficially nicknamed the "Purple Heart Battalion", with the motto "Remember Pearl Harbor".
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442nd Infantry Regiment (United States) The 442nd Regimental Combat Team is an infantry regiment of the United States Army, part of the Army Reserve. The regiment was a fighting unit composed almost entirely of American soldiers of Japanese ancestry (mostly from Hawaii) who fought in World War II. Most of the families of mainland Japanese Americans were confined to internment camps in the United States interior. Beginning in 1944, the regiment fought primarily in Europe during World War II, in particular Italy, southern France, and Germany.
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Sakae Ōba Sakae Ōba (大場 栄 , Ōba Sakae ) (21 March 1914 – 8 June 1992) was an officer of the Imperial Japanese Army during World War II. He served in both China and in the Pacific campaign. After Japanese forces were defeated in the Battle of Saipan, he led a group of soldiers and civilians deep into the jungle to evade capture by Allied forces. Under Ōba's leadership, the group survived for over a year after the battle and finally surrendered in December 1945, three months after the war had ended. Following his return to Japan, he became a successful businessman and served on the city council of Gamagori, Aichi.
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1st Battalion, 5th Marines 1st Battalion, 5th Marines (1/5) is an infantry battalion in the United States Marine Corps based out of Marine Corps Base Camp Pendleton, California consisting of approximately 800 Marines and sailors. Nicknamed "Geronimo", it falls under the command of the 5th Marine Regiment and the 1st Marine Division. The battalion was formed in 1914 and has served in every major conflict that the United States has been involved in since then.
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Battle of Okinawa The Battle of Okinawa (Japanese: 沖縄戦 , Hepburn: Okinawa-sen ) (Okinawan: 沖縄戦 , "Uchinaa ikusa " ), codenamed Operation Iceberg, was a major battle of the Pacific War fought on the island of Okinawa by United States Marine and Army forces against the Imperial Japanese Army and included the largest amphibious assault in the Pacific War during World War II, the April 1, 1945, invasion of Okinawa itself. The 82-day battle lasted from April 1 until June 22, 1945. After a long campaign of island hopping, the Allies were planning to use Okinawa, a large island only 340 mi away from mainland Japan, as a base for air operations for the planned invasion of the Japanese home islands.
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158th Infantry Regiment (United States) The 158th Infantry Regiment ("Bushmasters") is an infantry unit of the Arizona National Guard. The regiment has served abroad in World War I, World War II and Afghanistan.
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104th Infantry Regiment (United States) The 104th Infantry Regiment traces its history to 14 November 1639, when it was first mustered as the Springfield Train Band in Springfield, Massachusetts. In 1662 the unit was formed into the Hampshire Regiment of the Massachusetts Militia. It later served in the Continental Army during the American Revolution, with Union forces in the American Civil War, and as a federalized Massachusetts National Guard regiment with the U.S. Army during Spanish–American War, Mexican Border Campaign, World War I and World War II. The last active element of the regiment, the 1st Battalion, was deactivated in 2005 and the soldiers and lineage transferred to the 1st Battalion, 181st Infantry Regiment.
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25th Battalion (Australia) The 25th Battalion was an infantry unit of the Australian Army. Raised in early 1915 as part of the Australian Imperial Force during the First World War, the battalion fought at Gallipoli and in the trenches along the Western Front, before being disbanded in early 1919. In mid-1921, it was re-formed as a part-time unit based in the state of Queensland. Throughout the 1930s, the battalion was merged briefly with the 49th Battalion as a result of manpower shortages, but was later re-raised in its own right. During the Second World War, the 25th deployed to New Guinea where they fought the Battle of Milne Bay in August and September 1942. Later in the war, the 25th took part in the Bougainville Campaign. During the post-war period, the 25th Battalion became part of the Royal Queensland Regiment, variously forming battalion or company-sized elements, before being merged with the 49th Battalion to form the 25th/49th Battalion, Royal Queensland Regiment.
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23rd Infantry Regiment (Imperial Japanese Army) The 23rd Infantry Regiment was an infantry regiment in the Imperial Japanese Army. The regiment was attached to the 6th Infantry Brigade of the 6th Division and participated during the Second Sino-Japanese War. The regiment fought in the later stages of World War II, assigned to the Japanese Seventeenth Army at Bougainville Island in the Solomon Islands.
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229th Infantry Regiment (Imperial Japanese Army) The 229th Infantry Regiment was an infantry regiment in the Imperial Japanese Army. The 229th consisted mainly of conscripts from Gifu Prefecture. The regiment was attached to the 38th Division. The regiment participated during the Second Sino-Japanese War, the conquest of Hong Kong in 1941, the Dutch East Indies in early 1942, the Guadalcanal Campaign and Papua Campaign. While the 1st & 2nd Battalions were on Guadalcanal, its 3rd Battalion fought in the Battle of Buna–Gona in Territory of Papua from November 1942 to January 1943 where the 3rd Battalion was destroyed.
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Battle of Tinian The Battle of Tinian was a battle of the Pacific campaign of World War II, fought on the island of Tinian in the Mariana Islands from 24 July until 1 August 1944. The 9,000-man Japanese garrison was eliminated, and the island joined Saipan and Guam as a base for the Twentieth Air Force.
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Hideyoshi Obata Hideyoshi Obata (小畑 英良 , Obata Hideyoshi , 2 April 1890 – 11 August 1944) was a general in the Imperial Japanese Army in World War II. In March, 1944, Obata was assigned to the newly created 31st Army in charge of the inner line of defense of Japan. This included the Marianas, Carolines, and the Volcano-Bonin Islands. The IJA 29th Division, IJA 53rd Division, and 109th Division, with approximately 80,000 men. The 109th was stationed at Chichi-jima and command given to General Tadamichi Kuribayashi.
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101st Infantry Regiment (United States) The 101st Infantry Regiment was a formation of the United States Army, Massachusetts Army National Guard. Its history dates back to the American Civil War, and continues to the Spanish–American War, World War I, and World War II before being deactivated in 1993. The spirit of this unit and its history lives on in the modern 26th Infantry Brigade Combat Team of the Massachusetts Army National Guard.
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Burma Campaign The Burma Campaign in the South-East Asian theatre of World War II was fought in the British colony of Burma primarily between the forces of the British Empire and China, with support from the United States, against the invading forces of Imperial Japan, Thailand, and the Indian National Army. British Empire forces peaked at around 1,000,000 land and air forces, and were drawn primarily from British India, with British Army forces (equivalent to 8 regular infantry divisions and 6 tank regiments), 100,000 East and West African colonial troops, and smaller numbers of land and air forces from several other Dominions and Colonies. The Burmese Independence Army (known to the legitimate Burmese government and the Allies as the "Burmese Traitor Army" - BTA) was trained by the Japanese and spearheaded the initial attacks against British Empire forces.
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Type 100 submachine gun The Type 100 submachine gun (一〇〇式機関短銃 , Hyaku-shiki kikan-tanjū ) was a Japanese submachine gun used during World War II, and the only submachine gun produced by Japan in any quantity. It was made in two basic variants referred to by American and British observers as the Type 100/40 and the Type 100/44, the latter also known as the Type 100 (Simplified). A third variant was a folding version of the early model, sometimes referred to as the Type 100 Navy, made for parachutists.
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Battle of Slater's Knoll The Battle of Slater's Knoll (28 March – 6 April 1945) was a battle during the Second World War fought between Australian and Japanese forces on Bougainville Island. Part of the Bougainville campaign, the battle occurred as a force of about 3,300 Japanese from the Japanese 6th Division supported by a sizeable concentration of artillery launched a counterattack against the main Australian offensive which had been pushing south towards Buin, concentrating their attacks on Slater's Knoll near the Puriata River. The Australian troops belonged to the 7th Brigade, with the 25th Infantry Battalion being the most heavily engaged, although the 9th Infantry Battalion and the 61st Infantry Battalion also took part in the fighting.
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2/18th Battalion (Australia) The 2/18th Battalion was an Australian Army infantry unit that served during World War II. Formed in June 1940, the battalion was assigned to the 22nd Brigade, which formed part of the Australian 8th Division. After completing basic training, the 2/18th was sent to Singapore and Malaya to strengthen the defences of the British colonies in February 1941 against a possible Japanese attack. The 2/18th Battalion subsequently undertook garrison duties throughout the year at various locations in Malaya, where it conducted jungle training and constructed defences along the eastern coast.
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15th Battalion (Australia) The 15th Battalion was an infantry battalion of the Australian Army. Formed in 1914 as part of the all-volunteer Australian Imperial Force from Queensland and Tasmanian recruits, the battalion fought during the Gallipoli Campaign and on the Western Front during the First World War. It was disbanded after the war in 1919, but later re-raised as a part-time Citizens Forces unit based in Queensland in 1921, consisting of a mixture of volunteers and conscripts. Economic pressures and limited manpower resulted in the battalion being amalgamated with other battalions a couple of times during the inter-war years. In mid-1939, as rising tensions in Europe led to an expansion of the Australian military, the battalion was re-formed in its own right. During the Second World War the 15th Battalion was mobilised for wartime service and initially undertook defensive duties in Australia before taking part in the fighting against the Japanese in New Guinea and Bougainville in 1943–1945. The battalion was disbanded in 1946 and never re-raised.
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91st Division (Imperial Japanese Army) The 91st Division (第91師団 , Dai-kyūjūichi Shidan ) was an infantry division in the Imperial Japanese Army. Its call sign was the Future Division (先兵団 , Saki Heidan ) . It was created 12 April 1944 in Paramushir. The nucleus for the formation was the "1st Kuril Islands Garrison Group". It was an oversized type C(hei) security division, with its constituent brigades consisting of six infantry battalions each from July 1944. Highly unusually, the division had two artillery regiments.
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1st Battalion, 28th Marines The 1st Battalion, 28th Marines (1/28) is an inactive infantry battalion of the United States Marine Corps. They were part of the 26th Marine Regiment and 5th Marine Division and fought during the Battle of Iwo Jima in World War II.
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Tomitarō Horii Tomitarō Horii (堀井 富太郎 , Horii Tomitarō , November 7, 1890 – November 23, 1942) was a lieutenant general in the Imperial Japanese Army during World War II. After graduating from the Imperial Japanese Army Academy in 1911, Horii served in China before undertaking a variety of regimental appointments. Following Japan's entry into World War II, he commanded a division during the capture of Guam before commanding the Japanese force tasked with capturing Port Moresby. While attempting to canoe down the Kumusi River to reach Japanese forces fighting around Buna–Gona in November 1942, Horii drowned. His canoe was swept out to sea and capsized.
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17th Division (Imperial Japanese Army) The 17th Division (第17師団 , Dai-jūnana Shidan ) was an infantry division in the Imperial Japanese Army. Its tsūshōgō code name was the Moon Division (月兵団 , Getsu-heidan ) . The 17th Division was one of two infantry divisions newly raised by the Imperial Japanese Army immediately after the Russo-Japanese War (1904–1905). The division received its colors on 13 November 1907. Its original headquarters was in a suburb of the city of Okayama, and its troops were recruited primarily from communities in the three prefectures of Okayama, Hirohima, and Shimane. The first commander of the division was Lieutenant General Ichinohe Hyoe.