Джек Уезерфорд - Genghis Khan and the Making of the Modern World

Beginning with the Tangut campaigns, Genghis Khan had discovered that Chinese engineers knew how to build siege machines that could batter city walls with massive stones from far away. The Chinese had already developed a number of those devices: the catapult hurled stones, flaming liquids, and other harmful substances at or across city walls; and the trebuchet, a catapult powered by the drop of a heavy counterweight, threw objects even faster than the torsion catapult. The ballista was a mechanical device that shot large arrows that could damage buildings and structures and kill any person or animal in its path. Although quite old in the military history of siege warfare, the weapons were new to the Mongols, but they soon became a permanent part of the arsenal of Genghis Khan, who appreciated the efficiency and ingenuity behind them. More than merely using the weapons, Genghis Khan acquired the engineering intelligence needed to create them. The Mongols eagerly rewarded engineers who defected to them and, after each battle, carefully selected engineers from among the captives and impressed them into Mongol service. Genghis Khan made engineering units a permanent part of the Mongol army, and with each new battle and each conquest, his war machinery grew in complexity and efficiency.

The siege engines exercised a particular fascination for the Mongols because they allowed the attackers to stay well outside of the city and away from the danger of the person-to-person combat that they so abhorred. At some point, the Mongols encountered the Jurched use of the firelance, a bamboo tube stuffed with gunpowder, which when lit produced a slow burn that spewed sparks, flames, and smoke out of the end of the tube like a flamethrower. Developed from firecrackers, this weapon was used to ignite fires and as a device to disorient the enemy and their horses; in later refinements, the Mongols would adapt it for many more military purposes.

When he could not overtake their fortifications, Genghis Khan tried to draw the enemy out from their stronghold through strategems such as pretending to retreat, as illustrated in Jebe’s siege of Liaoyang during the Jurched campaign. In a movement known as the Dog Fight tactic, he feigned a withdrawal, ordering his troops to leave behind a lot of their equipment and stores as though they had fled in great fearful haste. The city officials sent soldiers out to gather up the booty, and they quickly clogged the open gates with carts and animals transporting all the goods. With the soldiers on the open field, and the city gates opened, the Mongols fell upon them and raced through the open doors to capture the city.

As lifelong nomads, the Mongols learned early to fight on the move. For the soldier farmer, to flee meant to lose; to chase meant to win. The sedentary soldier sought to drive the attacker away from the place. The nomad sought to kill the enemy, and it mattered not at all whether he killed the enemy while attacking toward him or fleeing from him. For the Mongol, both directions represented fighting; a fleeing conquest was just as good as a stationary one. Once Mongols lured their opponents out of their walled cities, they applied the techniques they had learned for managing the movement of large groups of animals. Most commonly, they either strung their pursuers out in a long line that became increasingly defenseless and was easily attacked as soon as the Mongols had lured them into a trap, or the fleeing Mongols divided into their small squads and led their pursuers off in small groups that could be more easily overcome.

Even when routed or pursued by a determined enemy, the Mongols employed still more tricks with which to save themselves. If they were surprised and overtaken while on patrol, they usually carried some valuable items with them to strew on the ground as they escaped. The enemy invariably broke ranks to retrieve the goods, often fighting among themselves to do so, and thereby allowed the Mongols to escape. At other times, the Mongols threw sand in the wind or tied tree branches to their horses’ tails to whip up the dust in order to obscure their movements or to make the pursuers think that the Mongols were in much greater numbers than they actually were.

After the first year of the Jurched campaigns, it became clear that the worst danger for the Mongols derived not from battle but from the unpleasant climate. The lower altitude and closeness to great rivers and the ocean made the air hold its moisture, and in the summer, the heat and humidity became nearly unbearable for the Mongols and their shaggy horses. Repeatedly, they reported falling ill with a horrible variety of maladies when in the agricultural and urban areas. Campaigning nearly halted in the summer, when large numbers of the Mongols and their horse herds withdrew the relatively short distance to the higher and cooler grasslands of Inner Mongolia.

In 1214, Genghis Khan, at last, besieged the court of the Golden Khan himself in Zhongdu (Beijing). The court had just been through a palace coup, and the new Golden Khan had endured so much internal strife that rather than face a prolonged siege and war, he agreed to a settlement with the Mongols to make them withdraw. He gave them massive amounts of silk, silver, and gold, as well as three thousand horses and five hundred young men and women. To seal the arrangement, the Golden Khan recognized himself as a vassal of Genghis Khan and gave him one of his royal princesses as a wife.

In response, Genghis Khan broke his siege of Zhongdu and began the long trek back toward Outer Mongolia on the north side of the Gobi. The Khitan had received back much of their land, and their royal family had been restored; the Jurched would be allowed to keep a smaller kingdom for themselves. He evidenced no intention of ruling these areas