Organization of the Mongol Empire under Genghis Khan Organization of the Mongol Empire under Genghis Khan Coined as a parallel to "Pax Romana", the "Pax Mongolica" (Latin for "Peace of the Mongols") was the term for situation where trade between China and Europe in the 13th and 14th centuries was common and free from profound interference. Although the Mongol system of administration and governance during the brief era was not exactly peaceful, the Pax Mongolica was a time of relative peace throughout the Old World that led to an increase of trade, as well as an increase in awareness, between distant nations. In essence, the Mongol Empire administered
Mongol invasions of Vietnam repeatedly ignored demands to attend the Yuan court and offer his personal submission to the Great Khan. By 1266, a standoff developed, as the Emperor Thánh Tông sought a loose tributary relationship, while Kublai demanded full submission. Trần Thánh Tông sent an official letter requiring Kublai to take his darughachi back. Because of civil war in the Mongol Empire, and the Yuan conquest of Song China, armed conflict was delayed. Instead, Kublai reminded him of the peace treaty signed by the Mongols and Đại Việt. As a result of the Mongol conquest of the Song Empire, by 1278–79, Mongol troops