History of the Great Wall of China the three, China's chief concern since the earliest times had been Mongolia – the home of many of the country's fiercest enemies including the Xiongnu, the Xianbei, the Khitans, and the Mongols. The Gobi Desert, which accounts for two-thirds of Mongolia's area, divided the main northern and southern grazing lands and pushed the pastoral nomads to the fringes of the steppe. On the southern side (Inner Mongolia), this pressure brought the nomads into contact with China. For the most part, barring intermittent passes and valleys (the major one being the corridor through Zhangjiakou and the Juyong Pass), the North China
Zhelaizhai being a "subgroup of the Chinese majority Han." Zhelaizhai lies in the Hexi Corridor in the northern region of China, on the eastern edge of the Gobi Desert. It is rural, with the nearest city being distant. Zhelaizhai Zhelaizhai () is a village on the edge of the Gobi desert in Gansu province, China. The area was renamed after Liqian, an ancient county, and is located in Jiaojiazhuang township, Yongchang County. Some of the modern-day residents of Zhelaizhai, now known as Liqian village, have been suspected to be descendants of a group Roman soldiers that were never accounted for after