Kaidu Page
But Duwa, pragmatic, made peace with Temür Khan shortly after. Kaidu’s realm was divided, and his descendants were eventually absorbed or destroyed.
Kublai, preoccupied with conquering Song China, underestimated his cousin. He sent envoys and even offered rich territories. Kaidu returned the envoys’ heads. By 1268, he had seized control of the Chagatai Khanate (Transoxiana and the Tarim Basin), either by installing puppets or ruling directly. He now commanded the heart of the Silk Road and its lucrative cities: Samarkand, Bukhara, and Kashgar. The rebel prince had become a khan in his own right. Kaidu’s warfare was a masterclass in steppe strategy. He commanded a purely nomadic army—armored lancers, horse archers, and light skirmishers—with no siege train or supply lines. He understood that Kublai’s Yuan army, though vast and well-equipped, was slow and tied to fortified cities and grain convoys. But Duwa, pragmatic, made peace with Temür Khan
Introduction: The Rebel Prince In the popular imagination, the Mongol Empire under Genghis Khan was a monolithic, unstoppable force. Yet within a single generation of the great conqueror’s death in 1227, the empire fractured into a collection of warring factions. The most formidable and charismatic leader of this fragmentation was Kaidu (c. 1230 – 1301) , a grandson of Genghis Khan. For nearly forty years, Kaidu waged a relentless war against his cousins, the Great Khans of the Yuan dynasty in China, turning the vast grasslands of Central Asia into a bloody chessboard. More than a mere rebel, Kaidu represented the struggle for a fading world: the nomadic, egalitarian steppe against the creeping bureaucracy and settled luxury of the Chinese court. Early Life and the Seeds of Hatred Kaidu was the son of Kashin, the fifth son of Ögedei Khan (Genghis’s third son and immediate successor). When Ögedei died in 1241, the empire was ruled by a succession of weak khans from the Ögedeid and Toluid lines. The fragile peace shattered in 1251, when a coup placed Möngke Khan, a member of the Toluid family (Genghis’s youngest son’s line), on the throne. He sent envoys and even offered rich territories
The decisive clash came in 1301 near the (the “Iron Pass”). Kaidu, with Duwa, fielded perhaps 120,000 horse archers—the largest nomadic army since Genghis. The Yuan army, under Temür’s cousin Qaishan , numbered 100,000, including Chinese artillery and Korean heavy infantry. He now commanded the heart of the Silk
His key ally was his cousin, , the Khan of the Chagatai Khanate, who provided the heavy cavalry and settled resources of Transoxiana. Together, they launched annual invasions into Kublai’s territory, often reaching as far east as Karakorum, the old Mongol capital. The Struggle for the Nomadic Soul Kaidu’s war was not merely dynastic; it was ideological. He saw Kublai’s adoption of Chinese court rituals, paper money, fixed taxes, and a bureaucratic state as a betrayal of Genghis Khan’s Yassa (law). In Kaidu’s eyes, a Mongol should live in a felt tent ( ger ), follow the herds, and owe allegiance only to a khan who proved himself on horseback. He famously declared: “Kublai has polluted himself with the customs of the peasants. Our grandfather’s empire was won with the bow and the horse, not with brushes and ink.”