At the meeting, Wang became trapped between the demands of his superiors and the reality of the troops and resources at his disposal. Commander Wang knew clearly that to defeat the Mongols, he needed an army of 150,000—at least three and possibly four times the size of the one that he had. Yet it would be difficult to supply such a large army in an inhospitable and infertile frontier zone.
Wang devised a new strategy. He lacked the soldiers to defend the border he had, and he lacked the soldiers to pursue the Mongols, defeat them, and expel them from the Great Loop. It was his tactical ability, however, that his superiors had counted on when they placed him in charge. He could find a way when they had not.
His chance came in the autumn of 1473, when Beg-Arslan launched the surprise attack on Ningxia to the south. Commander Wang knew he could not catch up with the Mongols, since by the time he arrived at one ravaged city, the invaders would already be looting another. However, he had decided that if he could not defeat them on the battlefield, he would strike at their civilian camp, where the raiding warriors had left their families and animals in presumed security. If he could not force the Mongol army out of China, he knew how to make them want to leave.
Commander Wang sent out reconnaissance missions into the deserts of the Great Loop. In October he received word that his spies had located Beg-Arslan’s Mongol base camp where the army had left their families near the Red Salt Lake.
From their perceived safety by the lake, the families could wait out the winter while their men raided one settlement after another and sent back the looted goods to the encampment. Late in the winter, while the Yellow River remained firmly frozen, the army would return across the ice into safe territory, where they could graze their animals and tend their flocks during the spring and summer before returning the following fall to resume the cycle of winter raids.
Knowing that the Mongols did not expect him to mount more than a token defense, Commander Wang abandoned the prior policy of waiting passively; he set out after the civilian camp. Wang Yue headed out with ten units of 1,000 cavalrymen in each. They marched some sixty miles in two days and nights, and when they neared the camp, the ten military units divided into two large pincers, surrounding the civilians. An effective strategy used by Ming forces in earlier fights with the Mongols involved trapping them along a river or lake that prevented their fleeing. Unable to swim, the Mongols could either die by drowning or by slaughter at the hands of the attackers.
The camp probably had the protection of a small guard, but Mongols depended less on military strength in such cases than on the ability of women, children, and animals to flee quickly. Normally, the Mongol guard set up stations some distance from the camp, and from this advance position they could see the dust of the approaching army, hear it, or simply feel the vibrations in the ground long before it came into the range of ears or eyes. Once alarmed, one of the sentries took responsibility to race back toward the camp and sound the warning to flee, while the remaining guard then attacked the invaders in a delaying ploy to give the others more time to escape. This October attack by Wang Yue’s army, however, came during one of the windiest times of the year. The autumn winds sometimes whip across northern Asia, and as they cross the Gobi, they pick up huge quantities of sand and dust.
Just such a storm formed as the Chinese crossed the desert toward the Red Salt Lake. Initially, the Chinese warriors became distressed and nervous with the bad luck of the storm in a hostile and alien environment they already feared. One of them, however, suggested that they could use the storm as a cover while they continued their advance. Wang Yue rewarded the man for his ingenuity and bravery, and he ordered his army forward.
They struck the Mongol camp without warning from both sides. According to Wang Yue’s account, his men killed or captured 350 Mongols, mostly women and children. They looted the camp, herded up the animals, and torched the