Topic: Military history/Japanese military history

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πŸ”— Unit 731

πŸ”— United States πŸ”— Russia πŸ”— Military history πŸ”— United States/Military history - U.S. military history πŸ”— Korea πŸ”— China πŸ”— Military history/World War II πŸ”— Japan πŸ”— Russia/history of Russia πŸ”— Japan/Japanese military history πŸ”— Military history/Asian military history πŸ”— Military history/Japanese military history πŸ”— Korea/Korean military history

Unit 731 (Japanese: 731ιƒ¨ιšŠ, Hepburn: Nana-san-ichi Butai), also referred to as Detachment 731, the 731 Regiment, Manshu Detachment 731, The Kamo Detachment, Ishii Unit, Ishii Detachment or the Ishii Company, was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that undertook lethal human experimentation during the Second Sino-Japanese War (1937–1945) of World War II. It was responsible for some of the most notorious war crimes carried out by Imperial Japan. Unit 731 was based at the Pingfang district of Harbin, the largest city in the Japanese puppet state of Manchukuo (now Northeast China), and had active branch offices throughout China and Southeast Asia.

Its parent program was officially known as the Epidemic Prevention and Water Purification Department of the Kwantung Army (ι–’ζ±θ»ι˜²η–«η΅¦ζ°΄ιƒ¨ζœ¬ιƒ¨, Kantōgun Bōeki KyΕ«suibu Honbu). Originally set up under the Kempeitai military police of the Empire of Japan, Unit 731 was taken over and commanded until the end of the war by General Shirō Ishii, a combat medic officer in the Kwantung Army. The facility itself was built in 1935 as a replacement for the Zhongma Fortress, and to expand the capabilities for Ishii and his team. The program received generous support from the Japanese government up to the end of the war in 1945.

Unit 731 and the other Units of the "Epidemic Prevention and Water Purification Department" were biological weapon production, testing, deployment and storage facilities. They routinely tested on human beings (who were referred to internally as "logs"). Additionally, the biological weapons were tested in the field on cities and towns in China. Estimates of those killed by Unit 731 and its related programs range up to half a million people.

The researchers involved in Unit 731 were secretly given immunity by the U.S. in exchange for the data they gathered through human experimentation. Other researchers that the Soviet forces managed to arrest first were tried at the Khabarovsk War Crime Trials in 1949. The Americans did not try the researchers so that the information and experience gained in bio-weapons could be co-opted into the U.S. biological warfare program, much as they had done with German researchers in Operation Paperclip. On 6 May 1947, Douglas MacArthur, as Supreme Commander of the Allied Forces, wrote to Washington that "additional data, possibly some statements from Ishii, can probably be obtained by informing Japanese involved that information will be retained in intelligence channels and will not be employed as 'War Crimes' evidence". Victim accounts were then largely ignored or dismissed in the West as communist propaganda.

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πŸ”— USA built 151 Aircraft carriers in WWII

πŸ”— Military history πŸ”— Military history/Military aviation πŸ”— Military history/North American military history πŸ”— Military history/United States military history πŸ”— Military history/Maritime warfare πŸ”— Military history/World War II πŸ”— Ships πŸ”— Military history/Asian military history πŸ”— Military history/Japanese military history πŸ”— Military history/European military history πŸ”— Military history/British military history

The escort carrier or escort aircraft carrier (U.S. hull classification symbol CVE), also called a "jeep carrier" or "baby flattop" in the United States Navy (USN) or "Woolworth Carrier" by the Royal Navy, was a small and slow type of aircraft carrier used by the Royal Navy, the Royal Canadian Navy, the United States Navy, the Imperial Japanese Navy and Imperial Japanese Army Air Force in World War II. They were typically half the length and a third the displacement of larger fleet carriers, slower, more-lightly armed and armored, and carried fewer planes. Escort carriers were most often built upon a commercial ship hull, so they were cheaper and could be built quickly. This was their principal advantage as they could be completed in greater numbers as a stop-gap when fleet carriers were scarce. However, the lack of protection made escort carriers particularly vulnerable, and several were sunk with great loss of life. The light carrier (U.S. hull classification symbol CVL) was a similar concept to the escort carrier in most respects, but was fast enough to operate alongside fleet carriers.

Escort carriers were too slow to keep up with the main forces consisting of fleet carriers, battleships, and cruisers. Instead, they were used to escort merchant ship convoys, defending them from enemy threats such as submarines and planes. In the invasions of mainland Europe and Pacific islands, escort carriers provided air support to ground forces during amphibious operations. Escort carriers also served as backup aircraft transports for fleet carriers, and ferried aircraft of all military services to points of delivery.

In the Battle of the Atlantic, escort carriers were used to protect convoys against U-boats. Initially escort carriers accompanied the merchant ships and helped to fend off attacks from aircraft and submarines. As numbers increased later in the war, escort carriers also formed part of hunter-killer groups that sought out submarines instead of being attached to a particular convoy.

In the Pacific theater, CVEs provided air support of ground troops in the Battle of Leyte Gulf. They lacked the speed and weapons to counter enemy fleets, relying on the protection of a Fast Carrier Task Force. However, at the Battle off Samar, one U.S. task force of escort carriers and destroyers managed to successfully defend itself against a much larger Japanese force of battleships and cruisers. The Japanese met a furious defense of carrier aircraft, screening destroyers, and destroyer escorts.

Of the 151 aircraft carriers built in the U.S. during World War II, 122 were escort carriers, though no examples survive. The Casablanca class was the most numerous class of aircraft carrier, with 50 launched. Second was the Bogue class, with 45 launched.

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πŸ”— Fu-Go Balloon Bomb

πŸ”— Aviation πŸ”— Military history πŸ”— Military history/Military aviation πŸ”— Military history/North American military history πŸ”— Military history/United States military history πŸ”— Military history/Military science, technology, and theory πŸ”— Military history/Weaponry πŸ”— Aviation/aircraft project πŸ”— Military history/World War II πŸ”— Japan πŸ”— Japan/Japanese military history πŸ”— Military history/Asian military history πŸ”— Military history/Japanese military history

A Fu-Go (ち号[兡器], fugō [heiki], lit. "Code Fu [Weapon]"), or fire balloon (ι’¨θˆΉηˆ†εΌΎ, fΕ«sen bakudan, lit. "balloon bomb"), was a weapon launched by Japan during World War II. A hydrogen balloon with a load varying from a 33Β lb (15Β kg) antipersonnel bomb to one 26-pound (12Β kg) incendiary bomb and four 11Β lb (5.0Β kg) incendiary devices attached, it was designed as a cheap weapon intended to make use of the jet stream over the Pacific Ocean and drop bombs on American cities, forests, and farmland. Canada and Mexico reported fire balloon sightings as well.

The Japanese fire balloon was the first ever weapon possessing intercontinental range (the second being the Convair B-36 Peacemaker and the third being the R-7 ICBM). The Japanese balloon attacks on North America were at that time the longest ranged attacks ever conducted in the history of warfare, a record which was not broken until the 1982 Operation Black Buck raids during the Falkland Islands War.

The balloons were intended to instill fear and terror in the U.S., though the bombs were relatively ineffective as weapons of destruction due to extreme weather conditions.

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πŸ”— Lockheed Bribery Scandals

πŸ”— United States πŸ”— Aviation πŸ”— Military history πŸ”— Military history/Military aviation πŸ”— Military history/North American military history πŸ”— Military history/United States military history πŸ”— Crime πŸ”— Business πŸ”— Politics πŸ”— Military history/German military history πŸ”— Military history/Dutch military history πŸ”— Japan πŸ”— Japan/Japanese military history πŸ”— Military history/Asian military history πŸ”— Military history/Japanese military history πŸ”— Military history/Italian military history πŸ”— Japan/Politics πŸ”— Military history/European military history

The Lockheed bribery scandals encompassed a series of bribes and contributions made by officials of U.S. aerospace company Lockheed from the late 1950s to the 1970s in the process of negotiating the sale of aircraft.

The scandal caused considerable political controversy in West Germany, Italy, the Netherlands and Japan. In the U.S., the scandal nearly led to Lockheed's downfall, as it was already struggling due to the commercial failure of the L-1011 TriStar airliner.

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πŸ”— Jewel Voice Broadcast

πŸ”— Military history πŸ”— Military history/World War II πŸ”— Japan πŸ”— Japan/Japanese military history πŸ”— Military history/Asian military history πŸ”— Military history/Japanese military history πŸ”— Japan/History πŸ”— Japan/Royalty and nobility

The Jewel Voice Broadcast (ηŽ‰ιŸ³ζ”Ύι€, Gyokuon-hōsō) was the radio broadcast in which Japanese Emperor Hirohito (Emperor Shōwa ζ˜­ε’Œε€©ηš‡ Shōwa-tennō) read out the Imperial Rescript on the Termination of the Greater East Asia War (ε€§ζ±δΊœζˆ¦δΊ‰η΅‚η΅γƒŽθ©”ζ›Έ, Daitōa-sensō-shΕ«ketsu-no-shōsho), announcing to the Japanese people that the Japanese Government had accepted the Potsdam Declaration demanding the unconditional surrender of the Japanese military at the end of World WarΒ II. This speech was broadcast at noon Japan Standard Time on August 15, 1945.

The speech was probably the first time that an Emperor of Japan had spoken (albeit via a phonograph record) to the common people. It was delivered in the formal, Classical Japanese that few ordinary people could easily understand. It made no direct reference to a surrender of Japan, instead stating that the government had been instructed to accept the terms of the Potsdam Declaration fully. This created confusion in the minds of many listeners who were not sure whether Japan had surrendered. The poor audio quality of the radio broadcast, as well as the formal courtly language in which the speech was composed, worsened the confusion. A digitally remastered version of the broadcast was released on 30 June 2015.

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πŸ”— Japanese Invasion Money

πŸ”— Military history πŸ”— Numismatics πŸ”— Military history/World War II πŸ”— Indonesia πŸ”— Japan πŸ”— Military history/Asian military history πŸ”— Military history/Japanese military history

Japanese invasion money, officially known as Southern Development Bank Notes (Japanese: ε€§ζ±δΊœζˆ¦δΊ‰θ»η₯¨ Dai Tō-A Sensō gunpyō, "Greater East Asia War military scrip"), was currency issued by the Japanese Military Authority, as a replacement for local currency after the conquest of colonies and other states in World War II. In February 1942 in Japan, laws were passed establishing the Wartime Finance Bank and the Southern Development Bank. Both institutions issued bonds to raise funds. The former loaned money primarily to military industries, but also to a wide range of other ventures, including hydroelectric generators, electric power companies, shipbuilding and petroleum. The latter provided financial services in areas occupied by the Japanese military, and Southern Development Bank notes were in fact used as de facto military scrip. In December 1942, the outstanding balance of Southern Development Bank notes stood at more than 470Β million; in March 1945, more than 13Β billion.

Already engaged in war with China, in 1940 the Japanese expanded the scope of their military operations in Asia and finally entered the Second World War in late 1941 with the attack on Pearl Harbor. Japan invaded various Asian countries, occupying vast territories and setting up military administrations.

Beginning with the capture of the Philippines, the Japanese military confiscated all hard currency, both on a federal and individual level, replacing it with locally printed notes bearing a proclamation of military issue. All notes bore the name of the Imperial Japanese government, and some notes proclaimed the "promises to pay the bearer on demand". Called β€œMickey Mouse Money" by local Filipinos, it was valueless after the overthrow of the Japanese, and tons of it were burned. Japanese troops were ordered to destroy bank records and any remaining currency prior to capitulation.

With the end of World War II, the currency circulated bearing the Japanese name immediately lost any value it once possessed and was discarded en masse. Money that was issued included the Philippines, Burma (now Myanmar), Malaya, North Borneo and Sarawak (now Malaysia), Singapore, Brunei, the Dutch East Indies (now Indonesia) and some areas of Oceania (New Guinea and the Solomon and Gilbert islands). Large amounts of the currency were obtained by Allied forces and civilians at the end of the war; many were kept as wartime souvenirs, and are now in both private and museum collections.

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