
5. The Great Conqueror’s Successors Continued His Conquests
Genghis Khan conquered an empire that stretched from the Sea of Japan in the east to the Caspian Sea in the west, and from the Siberian forests in the north down to Persia and Afghanistan in the south. The Mongol expansion did not stop with his death, however, as Genghis had left behind a formidable army, and capable military commanders whom he had trained to get the most out of the Mongol forces. That military machine kept on conquering for decades after its creator’s demise.
His successor Ogedei was not his father’s military equal, but he was wise enough to know that. From his capital in Mongolia, the new Great Khan directed simultaneous campaigns on multiple fronts, separated by thousands of miles. He entrusted their execution to his father’s capable generals, whom he authorized to act independently within their theaters, subject to Ogedei’s orders, which were relayed via a swift horse relay communications network. By the time Ogedei died in 1241, the Mongol Empire had reached its furthest southward extent, into southeast Asia, and westward all the way to the outskirts of Vienna.



