Organization of the Mongol Empire under Genghis Khan that came from other lands and peoples. A unified Mongol Empire made travel across Asia far easier for Europeans than it had been under a fractured group of minor kings, facilitating greater exposure to the West and travel for Western traders such as Marco Polo. Because of the extent of his empire, Genghis Khan deeply affected the cultures of many Asian countries, most notably Russia. 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
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