Numerous examples illustrate the war, insurance and other related strategic pass geographical factors may not ensure victory, but also often play a vital war role. This is the era of science and technology developed more obvious, and numerous insurance related strategic pass into many military strategists of the war will be in, so there will be a famous Chinese Six impregnable.
Shanhaiguan: Today at 15 kilometers northeast of Qinhuangdao, Hebei Province, is the starting point of the eastern end of the Ming Great Wall. First Ming emperor Hongwu 14 years (AD 1381), general Xu Da in the building of a town set off, carrying its Yanshan, west of Bohai, named Shanhaiguan. Shanhaiguan located Liaoxi Corridor, controlling choke off access, the “unparalleled in both Beijing lock and key”, best in the world off reputation.
Yanmenguan: in this northwest Shanxi Province on behalf of the County, the mountains, 20 kilometers check the appropriate boxes, because the two peaks Jiazhi, the shape of the door, such as Feiyan the meantime, it was the name. The thing rocks, hilly land, circled Road rugged terrain is extremely advantageous. Song Resistance Army of Liao Dynasty south Yanmenguan become a military town. Song Yang famous industry, Yang Yanzhao father and son had long been stationed here. Ming Yanmenguan, Ningwu off, partial off collectively, the “three tests”, one of the Nine Important attribution Taiyuan, strategic position is very prominent.
Tongguan: displace Lintong County, Shaanxi Province in this 10 km north-east, the ancient Luoyang, Chang’an important juncture between. It is to the south of the Yellow River, South Hill Mountain, is out of the Guanzhong Plain in the channel, but also the barrier east of Chang’an, also controls Shaanxi, Shanxi Yellow River crossing between the most important — Fenglingdu, due to the important position of being the ancients as “the whole Qin Tongguan solid solid.”
Yangyang: Hubei Province, today, in the Han River, connecting Hubei, Henan, Sichuan, Shaanxi Province, a hub zone 4. Three Kingdoms, Cao, Sun, Liu Xiangyang three military groups to fight the war several times. Song confrontation, Song Junjian keep Xiangyang decades. Element can not move half a step the military. Finally, since the city opened Lii Wenhuan Song generals to surrender, This allows the military to drive straight element, the Southern Song dynasty.
Xuzhou: Originally known as Pengcheng, the ancient Chinese military town in eastern Central Plains, located in the northwest of Jiangsu Province, neighboring Henan, Shandong and Anhui provinces. It is located in the Huang-Huai Plain, the East near the Yellow Sea, west, central plains, adjacent to Lunan Mountain, Nanping JAC Mizusawa, land influx, water flow, has always been contested. According to statistics, from the Warring States has occurred in and around the war in Xuzhou reached 150 times. Northern and Southern Dynasties, Xuzhou is the focus of North-South struggle, the “southern city, the north gate lock and key,” said. “Pengcheng of the gains and losses, Zhe Rise and Fall of South-North relations.”
Hanzhong: in this Sichuan, Shaanxi and Hubei provinces of the junction of the northern gate of Sichuan. Three Shu, Wei wage war, Shu Army occupied the land of Hanzhong, a springboard into the can for Gong Wei, retreat to entrenched barriers of Sichuan, as the long-term Pianju corner of Shu Han regime a strong guarantee. The jiange Hanzhong Road is built in large and small sword mountain cliff path along the cliff between. The land Liangyaqiazhi, difficult terrain, easily defended, it has used “Kazuo pass, 10000 Fumo open” to describe their risk.
