Yura Fortress
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Yura Fortress
200px, ruins of Oishi Battery No.1 thumbnail, 200px, ruins of Miyama Battery was the name of a group of coastal fortifications built to guard the entrance to Osaka Bay and thus the city of Osaka from attack from the sea. These gun batteries and fortifications ceased to be used after the end of World War II. History After the Meiji restoration, the primary threats to the new Empire of Japan were perceived to be Qing China's Beiyang fleet, followed by the Russian Empire's Pacific Fleet. The Meiji government ordered the construction of a set of coastal fortifications to protect the western entrance to the Seto Inland Sea and the cities of Osaka, Kobe and Kyoto starting in 1889. The main facilities were constructed in three groups to block the Kitan Strait, one group on Awaji Island, one group on Tomogashima in the middle of the strait, and one ground around Miyama on the western shore of Kii Peninsula in Wakayama city. A fourth group, the Naruto Fortress, was added to the Yu ...
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Osaka Bay
Osaka Bay (大阪湾 ''Ōsaka-wan'' ) is a bay in western Japan. As an eastern part of the Seto Inland Sea, it is separated from the Pacific Ocean by the Kii Channel and from the neighbor western part of the Inland Sea by the Akashi Strait. Its western shore is formed by Awaji Island, and its northern and eastern shores are part of the Kansai metropolitan area. Major ports on Osaka Bay include Osaka, Kobe, Nishinomiya, Sakai, Amagasaki, and Hannan. A number of artificial islands have been created in Osaka Bay in past decades, including Kansai International Airport, Kobe Airport, Port Island, and Rokkō Island. In antiquity, Osaka Bay stretched almost to Kyoto, Naniwa, Osaka's oldest settlement, itself a peninsula in the bay. Several islands at the south end of Osaka Bay are part of the Seto Inland Sea National Park. Industries locate around Osaka Bay because there is a skilled and plentiful workforce, many port facilities, efficient linkages (from small to medium to la ...
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Kobe
Kobe ( , ; officially , ) is the capital city of Hyōgo Prefecture Japan. With a population around 1.5 million, Kobe is Japan's seventh-largest city and the third-largest port city after Tokyo and Yokohama. It is located in Kansai region, which makes up the southern side of the main island of Honshū, on the north shore of Osaka Bay. It is part of the Keihanshin metropolitan area along with Osaka and Kyoto. The Kobe city centre is located about west of Osaka and southwest of Kyoto. The earliest written records regarding the region come from the '' Nihon Shoki'', which describes the founding of the Ikuta Shrine by Empress Jingū in AD 201.Ikuta Shrine official website
– "History of Ikuta Shrine" (Japanese)

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Capital Ship
The capital ships of a navy are its most important warships; they are generally the larger ships when compared to other warships in their respective fleet. A capital ship is generally a leading or a primary ship in a naval fleet. Strategic implications There is usually no formal criterion for the classification, but it is a useful concept in naval strategy; for example, it permits comparisons between relative naval strengths in a theatre of operations without the need for considering specific details of tonnage or gun diameters. A notable example of this is the Mahanian doctrine, which was applied in the planning of the defence of Singapore in World War II, where the Royal Navy had to decide the allocation of its battleships and battlecruisers between the Atlantic and Pacific theatres. The Mahanian doctrine was also applied by the Imperial Japanese Navy, leading to its preventive move to attack Pearl Harbor and the battleships of the U.S. Pacific Fleet. The naval nature of ...
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Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrender in World War II. The Japan Maritime Self-Defense Force (JMSDF) was formed between 1952–1954 after the dissolution of the IJN. The Imperial Japanese Navy was the third largest navy in the world by 1920, behind the Royal Navy and the United States Navy (USN). It was supported by the Imperial Japanese Navy Air Service for aircraft and airstrike operation from the fleet. It was the primary opponent of the Western Allies in the Pacific War. The origins of the Imperial Japanese Navy go back to early interactions with nations on the Asian continent, beginning in the early medieval period and reaching a peak of activity during the 16th and 17th centuries at a time of cultural exchange with European powers during the Age of Discovery. After t ...
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Siege Of Port Arthur
The siege of Port Arthur ( ja, 旅順攻囲戦, ''Ryojun Kōisen''; russian: link=no, Оборона Порт-Артура, ''Oborona Port-Artura'', August 1, 1904 – January 2, 1905) was the longest and most violent land battle of the Russo-Japanese War. Port Arthur, the deep-water port and Russian naval base at the tip of the Liaodong Peninsula in Manchuria, had been widely regarded as one of the most strongly fortified positions in the world. However, during the First Sino-Japanese War, General Nogi Maresuke had taken the city from the forces of Qing China in only a few days. The ease of his victory during the previous conflict, and overconfidence by the Japanese General Staff in its ability to overcome improved Russian fortifications, led to a much longer campaign and far greater losses than expected. The siege of Port Arthur saw the introduction of much technology used in subsequent wars of the 20th century (particularly in World War I) including massive 28 cm howit ...
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Russo-Japanese War
The Russo-Japanese War ( ja, 日露戦争, Nichiro sensō, Japanese-Russian War; russian: Ру́сско-япóнская войнá, Rússko-yapónskaya voyná) was fought between the Empire of Japan and the Russian Empire during 1904 and 1905 over rival imperial ambitions in Manchuria and the Korean Empire. The major theatres of military operations were located in Liaodong Peninsula and Mukden in Southern Manchuria, and the Yellow Sea and the Sea of Japan. Russia sought a warm-water port on the Pacific Ocean both for its navy and for maritime trade. Vladivostok remained ice-free and operational only during the summer; Port Arthur, a naval base in Liaodong Province leased to Russia by the Qing dynasty of China from 1897, was operational year round. Russia had pursued an expansionist policy east of the Urals, in Siberia and the Far East, since the reign of Ivan the Terrible in the 16th century. Since the end of the First Sino-Japanese War in 1895, Japan had feared Russian en ...
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Shikoku
is the smallest of the four main islands of Japan. It is long and between wide. It has a population of 3.8 million (, 3.1%). It is south of Honshu and northeast of Kyushu. Shikoku's ancient names include ''Iyo-no-futana-shima'' (), ''Iyo-shima'' (), and ''Futana-shima'' (), and its current name refers to the four former provinces that made up the island: Awa, Tosa, Sanuki, and Iyo. Geography Shikoku Island, comprising Shikoku and its surrounding islets, covers about and consists of four prefectures: Ehime, Kagawa, Kōchi, and Tokushima. Across the Seto Inland Sea lie Wakayama, Osaka, Hyōgo, Okayama, Hiroshima, and Yamaguchi Prefectures on Honshu. To the west lie Ōita and Miyazaki Prefectures on Kyushu. Shikoku is ranked as the 50th largest island by area in the world. Additionally, it is ranked as the 23rd most populated island in the world, with a population density of 193 inhabitants per square kilometre (500/sq mi). Mountains running east and west d ...
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Naruto Strait
is a strait between Awaji Island and Shikoku in Japan. It connects Harima Nada, the eastern part of the Inland Sea and the Kii Channel. A famous feature of the strait is the Naruto whirlpools. Ōnaruto Bridge, the southern part of the Kobe-Awaji-Naruto Expressway The is a tolled expressway that connects Hyōgo and Tokushima prefectures in Japan by crossings of the Akashi Strait and Naruto Strait. Built between 1970 and 1998, it is one of the three routes of the Honshu-Shikoku Bridge Expressway Company ..., crosses over it. External links Interactive satellite photos of the site Straits of Japan Tourist attractions in Hyōgo Prefecture Landforms of Hyōgo Prefecture {{Tokushima-geo-stub ...
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Wakayama (city)
Wakayama City Hall is the capital city of Wakayama Prefecture in the Kansai region of Japan. , the city had an estimated population of 351,391 in 157066 households and a population density of 1700 persons per km². The total area of the city is . Geography Wakayama is located at the northwest corner of Wakayama Prefecture, bordered by Osaka Prefecture to the north and the Kii Channel and Kitan Strait to the west. It is located on the mouth of the Kinokawa River with the main urban center of the city on the river's left bank. Neighboring municipalities Wakayama Prefecture * Kainan * Kinokawa *Iwade Osaka Prefecture * Hannan *Misaki Hyōgo Prefecture *Sumoto, Hyōgo (separated by the Kitan Strait) Climate Wakayama has a Humid subtropical climate (Köppen ''Cfa'') characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Wakayama is 15.6 °C. The average annual rainfall is 1713 mm with September as the wettest month. Th ...
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Kii Peninsula
The is the largest peninsula on the island of Honshū in Japan. It is named after the ancient Kii Province. Overview The area south of the “ Central Tectonic Line” is called , and is home to reef-like coral communities which are amongst the northernmost in the world (apart from cold-water corals) due to the presence of the warm Kuroshio Current, though these are threatened by global warming and human interference. Because of the Kuroshio’s strong influence, the climate of Nankii is the wettest in the Earth’s subtropics with rainfall in the southern mountains believed to reach per year and averaging in the southeastern town of Owase, comparable to Ketchikan, Alaska or Tortel in southern Chile. When typhoons hit Japan, the Kii Peninsula is typically the worst affected area and daily rainfalls as high as are known so the Kii Peninsula is often referred to as the Typhoon Ginza (after Ginza in Tokyo). Most of the Kii Peninsula is dense temperate rainforest since the ...
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Tomogashima
is a cluster of four islands in the Inland Sea, off Wakayama, Wakayama, Japan. The four islands are , , , and . The islands form part of the Setonaikai National Park. History The islands were used by Buddhist monks for Shugendō. The folklore of the region holds that ''Ennogyoja'', the founder of shugendo, underwent training on the steep cliffs of Tomogashima in the seventh to eighth centuries. This gave rise to the nickname of "The island of shugendo (mountain asceticism)" for Tomogashima. Later, during the Meiji period, a brick fort and lighthouse were built. Also during this time gun batteries and other defences, along with various support facilities, were constructed to counter foreign warships. Tomogashima was a critical component of the Shusei Kokubō (守勢国防 - i.e. "Static Defence") policy of the 1870s and 1880s, which emphasised coastal defences. Access to the cluster by the public was strictly prohibited by the Imperial Japanese Army up to the end of World War II. ...
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