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The Battle of Xiangyang () was a key battle between the invading Mongols of the Yuan dynasty and Southern Song forces from AD 1267 to 1273. After the battle, the victorious Yuan forces pushed farther into the Song heartland. Previously for 30 years, the Song dynasty managed to handle several major offensives by the Mongol Empire. The strategic significance of Xiangyang came from the fact that it was in a position dominating the Han river. Once the Yuan forces occupied Xiangyang, they could travel by ships down the Han river into the Yangtze river. After the Battle of Xiangyang, the Song dynasty could not enjoy the protection of natural barriers any more and so it collapsed in just a few years, with the final battle being the relatively short naval Battle of Yamen in 1279. The battle consisted of skirmishes, ground assault, and the siege of the twin fortified cities of Fancheng and Xiangyang in modern-day Hubei, China. Lü Wenhuan, commander-in-chief of the Southern Song dynasty, surrendered to Kublai Khan in 1273. The conventional use of Mongolian cavalry was restricted by the woody terrain and numerous military outposts of the Southern Song dynasty. Chinese firearms and cannons were employed by the Mongols in the victorious siege of Fancheng after capturing the outposts and relieving Chinese forces from Sichuan and Yuezhou, which broke through the siege but was eventually defeated. The use of the counterweight trebuchet by the Mongols proved especially effective. == Background == (詳細はSiberia, Tibet, Korea, North China, Yunnan, Iraq, Anatolia and Iran. However, the Song dynasty was difficult to conquer because of the strategic location of Xiangyang, which became a vital position for Kublai to capture and hold. The city guarded the waterways of South China because the Han River was a major tributary into the Yangtze River. Once the city fell, the Mongols obtained easy access into important Southern cities in China and the Southern Song would collapse shortly after. The Southern Song knew the importance of this vital spot, and treated the defense of Xiangyang as important as their capital. The city was surrounded by mountains on three sides, and a river (Han river) on one side. Song stored massive amount of supplies inside the fortress, as preparation for long sieges. They also built high walls and towers on all four sides of the fortress. Each entrance of the fortress had at least two layers of walls, used to trap enemy sieging forces inside. In 1133, the famous Song general Yue Fei led many successful campaigns against the Jin dynasty, in the Xiangyang area. From there, he pushed the Jin army back north as far as Kaifeng. In 1234, the Jin dynasty was conquered by the Mongols under the leadership of Ögedei. At that time, Mongols and the Southern Song dynasty were allies. After that, the two former allies did not have any common enemy. The Song killed Mongol envoys and attempted to invade the Mongol territories.〔The Cambridge History of China: Volume 6, Alien Regimes and Border States By Herbert Franke, Denis Twitchett, John King Fairbank, p.367〕 Xiangyang surrendered to the army of the Mongol Empire without resistance in 1236.〔John Man ''Kublai Khan'', p.158〕〔J.Bor ''Mongol hiiged eurasiin diplomat shshtir, VOL. II''〕 But the Mongols voluntarily left the city after it was briefly held by them in 1236-38. The twin cities of Xiangyang-Fenchang, with walls almost 5 kilometers around and 200,000 people, withstood a Mongol assault in 1257.〔C. P. Atwood ''Encyclopedia of Mongolia and the Mongol Empire, p.592〕 The Mongolian cavalry were lured in Xiangyang where they were slaughtered by the Song defenders due to the fortress' double layered wall design. When a Mongol contingent entered the entrance of the fortress, the Mongol forces would be slaughtered to the last man, while trapped between 4 walls. Mongols lifted the siege of Xiangyang. The sudden death of Möngke Khan forced the imperial army of the Mongol Empire to withdraw from the Song territory in 1259-60. In 1260, Kublai Khan was proclaimed successor to the throne after the death of his brother Möngke, as was his youngest brother Ariq Böke. The succession war between him and Ariq Böke began. Kublai Khan won the war eventually, though his claim as the successor to Möngke was only partially recognized by the Mongols in the west. In 1271, Kublai Khan renamed his empire "Yuan", establishing the Yuan dynasty, instead of "Ikh Mongol Uls" (Great Mongolian Nation or Great Mongol Empire).〔C. P. Atwood ''Encyclopedia of Mongolia and the Mongol Empire'', p.648〕 After defeating his rivals and opponents in Mongolia and Northern China, Kublai Khan also wanted to continue his grandfather Genghis Khan's conquest of China. In 1267, Kublai Khan ordered Aju and the Song defector Liu Zheng to attack Xiangyang and Fencheng. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Battle of Xiangyang」の詳細全文を読む スポンサード リンク
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