Organization of the Mongol Empire under Genghis Khan it also strengthened Mongol society as a whole. Genghis Khan’s united Mongol nation formed the foundation of the largest continuous land empire ever known. A wise statesman, Genghis also established Mongolian-style democracy that respected the ethnic and cultural diversity of his Empire. His government left many long-lasting legacies: Genghis Khan preferred to rule through existing hierarchies, but where he was resisted he destroyed the existing aristocracy. Nevertheless, he created at the same time a rough meritocracy among the Mongols. Positions of honor were given on the basis of bravery in battle or outstanding loyalty, as opposed to the old system
Mongol invasions of Vietnam third invasions occurred during the reign of Kublai Khan of the Yuan Dynasty. By this point, the Mongolian Empire had fractured into 4 separate entities with Yuan Dynasty being the strongest and biggest empire. These invasions resulted in a disastrous land defeat for the Mongols in 1285 and the annihilation of the Mongol navy in 1288. However, both the Trần dynasty and Champa decided to accept the nominal supremacy of the Yuan dynasty and serve as tributary states in order to avoid further conflicts. By the 1250s, the Mongol Empire controlled large amounts of Eurasia including much of Eastern Europe,