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Yonaguni Transit
, one of the Yaeyama Islands, is the westernmost inhabited island of Japan, lying from the east coast of Taiwan, between the East China Sea and the Pacific Ocean proper. The island is administered as the town of Yonaguni, Yaeyama Gun, Okinawa, and there are three settlements: Sonai, Kubura, and Higawa. History Early human migration from Taiwan to Yonaguni island has long been the subject of scholarly debate. In 2019, a team of Japanese and Taiwanese researchers succeeded in completing the two-day journey from Cape Wushibi in Taitung County to Yonaguni island along the Kuroshio current in a dugout canoe based on technology and materials from 30,000 years ago. Otherwise, the early history of Yonaguni remains vague. The first written record that ever mentions the island is a 1477 Korean document (''Chosen Hyōryūmin no Yaeyama kenbunroku''), an account of several fishermen from the current Jeju Province who drifted there. A legendary female leader, San’ai Isoba, is sai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East China Sea
The East China Sea is an arm of the Western Pacific Ocean, located directly offshore from East China. It covers an area of roughly . The sea’s northern extension between mainland China and the Korean Peninsula is the Yellow Sea, separated by an imaginary line between the eastern tip of Qidong at the Yangtze River estuary and the southwestern tip of South Korea's Jeju Island. The East China Sea is bounded in the east and southeast by the middle portion of the first island chain off the eastern Eurasian continental mainland, including the Japanese island of Kyushu and the Ryukyu Islands, and in the south by the island of Taiwan. It connects with the Sea of Japan in the northeast through the Korea Strait, the South China Sea in the southwest via the Taiwan Strait, and the Philippine Sea in the southeast via gaps between the various Ryukyu Islands (e.g. Tokara Strait and Miyako Strait). Most of the East China Sea is shallow, with almost three-fourths of it being less than ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ryūkyū Kingdom
The Ryukyu Kingdom, Middle Chinese: , , Classical Chinese: (), Historical English language, English names: ''Lew Chew'', ''Lewchew'', ''Luchu'', and ''Loochoo'', Historical French name: ''Liou-tchou'', Historical Dutch name: ''Lioe-kioe'' was a kingdom in the Ryukyu Islands from 1429 to 1879. It was ruled as a tributary state of Ming dynasty, imperial Ming China by the King of Ryukyu, Ryukyuan monarchy, who unified Okinawa Island to end the Sanzan period, and extended the kingdom to the Amami Islands and Sakishima Islands. The Ryukyu Kingdom played a central role in the maritime history, maritime trade networks of medieval East Asia and Southeast Asia despite its small size. The Ryukyu Kingdom became a vassal state of the Satsuma Domain of Japan after the invasion of Ryukyu in 1609 but retained ''de jure'' independence until it was transformed into the Ryukyu Domain by the Empire of Japan in 1872. The Ryukyu Kingdom was Ryūkyū Disposition, formally annexed and dissolved by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edo Literary Works
Japanese literature throughout most of its history has been influenced by cultural contact with neighboring Asian literatures, most notably China and its literature. Early texts were often written in pure Classical Chinese or , a Chinese-Japanese creole language. Indian literature also had an influence through the spread of Buddhism in Japan. During the Heian period, Japan's original culture () developed and literature also established its own style, with the significant usage and development of to write Japanese literature. Following the Perry Expedition which led to the end of the policy and the forced reopening of foreign trade, Western literature has also made influences to the development of modern Japanese writers, while Japanese literature has in turn become more recognized internationally, leading to two Japanese Nobel laureates in literature, namely Yasunari Kawabata and Kenzaburō Ōe. History Nara-period literature (before 794) Before the introduction of kanji from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edo Period
The or is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's 300 regional '' daimyo''. Emerging from the chaos of the Sengoku period, the Edo period was characterized by economic growth, strict social order, isolationist foreign policies, a stable population, perpetual peace, and popular enjoyment of arts and culture. The period derives its name from Edo (now Tokyo), where on March 24, 1603, the shogunate was officially established by Tokugawa Ieyasu. The period came to an end with the Meiji Restoration and the Boshin War, which restored imperial rule to Japan. Consolidation of the shogunate The Edo period or Tokugawa period is the period between 1603 and 1867 in the history of Japan, when Japan was under the rule of the Tokugawa shogunate and the country's regional '' daimyo''. A revolution took place from the time of the Kamakura shogunate, which existed with the Tennō's court, to the Tok ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Air Self-Defense Force
The , , also informally referred to as the Japanese Air Force, is the air and space branch of the Japan Self-Defense Forces, responsible for the defense of Japanese airspace, other air and space operations, cyberwarfare and electronic warfare. The JASDF carries out combat air patrols around Japan, while also maintaining a network of ground and air early-warning radar systems. The branch also has an aerobatic team known as Blue Impulse and has provided air transport in UN peacekeeping missions. The JASDF had an estimated 49,913 personnel as of 2018, and as of 2020 operates about 740 aircraft, approximately 330 of them being fighter aircraft. As of 2020, the JASDF is under increasing pressure to intercept warplanes from China's People's Liberation Army Air Force (PLAAF) close to entering its air space. As of the last fiscal year ending in March 2020, the JASDF scrambled a record 947 times alone against PLAAF warplanes, putting heavy wear and tear on the F-15J. As of 2021 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japan Ground Self-Defense Force
The Japan Ground Self-Defense Force ( ja, 陸上自衛隊, Rikujō Jieitai), , also referred to as the Japanese Army, is the land warfare branch of the Japan Self-Defense Forces. Created on July 1, 1954, it is the largest of the three service branches. New military guidelines, announced in December 2010, direct the Japan Self-Defense Forces away from their Cold War focus on the Soviet Union to a new focus on China, especially in respect of the dispute over the Senkaku Islands. The JGSDF operates under the command of the chief of the ground staff, based in the city of Ichigaya, Shinjuku, Tokyo. The present chief of staff is General Yoshihide Yoshida. The JGSDF numbered around 150,000 soldiers in 2018.IISS Military Balance 2018, Routledge, London, 2018. p.271 History 20th century Soon after the end of the Pacific War in 1945 with Japan accepting the Potsdam Declaration, the Imperial Japanese Army and Imperial Japanese Navy were dismantled by the orders of Supreme Commander ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al Jazeera
Al Jazeera ( ar, الجزيرة, translit-std=DIN, translit=al-jazīrah, , "The Island") is a state-owned Arabic-language international radio and TV broadcaster of Qatar. It is based in Doha and operated by the media conglomerate Al Jazeera Media Network. The flagship of the network, its station identification, is ''Al Jazeera.'' The patent holding is a "private foundation for Public interest law, public benefit" under Qatari law. Under this organizational structure, the parent receives Financial endowment, funding from the Cabinet of Qatar, government of Qatar but maintains its editorial independence. In June 2017, the Saudi, Emirati, Bahraini, and Egyptian governments insisted on the Proscription, closure of the entire conglomerate as one of thirteen demands made to the Government of Qatar during the Qatar diplomatic crisis. The channel has been criticised by some organisations as well as nations such as Saudi Arabia for being "Qatari propaganda". Etymology In Arabic, ' l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early-warning Radar
An early-warning radar is any radar system used primarily for the long-range detection of its targets, i.e., allowing defences to be alerted as ''early'' as possible before the intruder reaches its target, giving the air defences the maximum time in which to operate. This contrasts with systems used primarily for tracking or gun laying, which tend to offer shorter ranges but offer much higher accuracy. EW radars tend to share a number of design features that improve their performance in the role. For instance, EW radar typically operates at lower frequencies, and thus longer wavelengths, than other types. This greatly reduces their interaction with rain and snow in the air, and therefore improves their performance in the long-range role where their coverage area will often include precipitation. This also has the side-effect of lowering their optical resolution, but this is not important in this role. Likewise, EW radars often use much lower pulse repetition frequency to maximi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal Defence And Fortification
300px, Castillo San Felipe de Barajas in Cartagena de Indias, Colombia, an example of an Early Modern coastal defense Coastal defence (or defense) and coastal fortification are measures taken to provide protection against military attack at or near a coastline (or other shoreline), for example, fortifications and coastal artillery. Because an invading enemy normally requires a port or harbour to sustain operations, such defences are usually concentrated around such facilities, or places where such facilities could be constructed. Coastal artillery fortifications generally followed the development of land fortifications, usually incorporating land defences; sometimes separate land defence forts were built to protect coastal forts. Through the middle 19th century, coastal forts could be bastion forts, star forts, polygonal forts, or sea forts, the first three types often with detached gun batteries called "water batteries". Coastal defence weapons throughout history were heavy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North-northeast
The points of the compass are a set of horizontal, Radius, radially arrayed compass directions (or Azimuth#In navigation, azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each separated by 90 degree (angle), degrees, and secondarily divided by four ordinal (intercardinal) directions—northeast, southeast, southwest, and northwest—each located halfway between two cardinal directions. Some disciplines such as meteorology and navigation further divide the compass with additional azimuths. Within European tradition, a fully defined compass has 32 'points' (and any finer subdivisions are described in fractions of points). Compass points are valuable in that they allow a user to refer to a specific azimuth in a Colloquialism, colloquial fashion, without having to compute or remember degrees. Designations The names of the compass point directions follow these rules: 8-wind compass rose ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nautical Mile
A nautical mile is a unit of length used in air, marine, and space navigation, and for the definition of territorial waters. Historically, it was defined as the meridian arc length corresponding to one minute ( of a degree) of latitude. Today the international nautical mile is defined as exactly . The derived unit of speed is the knot, one nautical mile per hour. Unit symbol There is no single internationally agreed symbol, with several symbols in use. * M is used as the abbreviation for the nautical mile by the International Hydrographic Organization. * NM is used by the International Civil Aviation Organization. * nmi is used by the Institute of Electrical and Electronics Engineers and the United States Government Publishing Office. * nm is a non-standard abbreviation used in many maritime applications and texts, including U.S. Government Coast Pilots and Sailing Directions. It conflicts with the SI symbol for nanometre. History The word mile is from the Latin word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Senkaku Islands
The are a group of uninhabited islands in the East China Sea, administered by Japan. They are located northeast of Taiwan, east of China, west of Okinawa Island, and north of the southwestern end of the Ryukyu Islands. They are known in mainland China as the Diaoyu Islands or Diaoyu Dao and its affiliated islands (; also simply ), in Taiwan as the Diaoyutai Islands or Tiaoyutai Islands (), and sometimes in the Western world by the historical name Pinnacle Islands. cites Hagstrom 2005; "The islands are also called 'Pinnacle Islands' for convenience and neutrality sake by Western scholars" In Okinawan they are called . In the Yaeyama language, they are called ''iigunkubajima''. The islands are the focus of a territorial dispute between Japan and China and between Japan and Taiwan. China claims the discovery and ownership of the islands from the 14th century, while Japan maintained ownership of the islands from 1895 until its surrender at the end of World War II. The United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
