The Mongol Empire quickly conquered huge amounts of land in a relatively short period of time, but their serious challenge was finding a way to govern and maintain the newly acquired land. Genghis Khan united the Mongols and, thanks to their superior military capabilities, overthrew the governments of surrounding nations and conquered their lands. The Mongols who occupied each subjugated nation ruled over the people and installed different systems of government that suited their tastes. The Golden Horde, those who conquered the land of modern-day Russia, decided to tax their subjects and refuse to coexist with them. The Mongols in Persia created the Ilkhanate of Persia, where nomads assimilated into Persian cultures and societies and were ruled by a khan, or leader. Those in China during the Yuan Dynasty abolished civil exams and decided to promote individuals to rule the lands so that nomads would not have to deal with politics. These three different types of relationships and ways of establishing government rule are the Mongols' response to the needs of their newly reclaimed lands. The Golden Horde was the ruling power of Russia and the Mongols received the gold they wanted from the Slavs in exchange for military resources. protection through a vassal agreement. Genghis Khan began the conquest of the enormous nation of Russia with his elite equestrian armies who “attacked and defeated the princes of Russia and founded their own empire.” To finalize his power over the newly dominated people, “the khan made vassals of the Russian princes, who paid a heavy tribute every year but governed their states independently”. The effect of this vassalage agreement was that the Mongols would receive the gold and treasures they desired from... middle of the paper... from a large amount of land. The document describes in detail Batu's military campaign and how the princes of Russia took advantage of the internal difficulties of the Golden Horde to rebel and become independent again. Xu, Guangqui, ed. Eras of the world. vol. 7. Detroit: Gale, 2003. Accessed April 12, 2011. http://ic.galegroup.com////ReferenceDetailsWindow?displayGroupName=Reference&prodId=WHIC&action=e&windowstate=normal&catId=&documentId=GALE|CX3035200093&mode=view.This secondary source offers excellent information on the economy of the Yuan Dynasty, especially their agricultural and trade policies. The paper talks about Genghis Khan's role as a catalyst for the growth of the Chinese merchant class and how the profession quickly gained a lot of respect while it was considered a class of thieves and the lowest people in the community..