King Wonjong of Goryeo vs Kyansittha

King Wonjong sent his son (future King Chungnyeol) as a hostage to the Mongol court and agreed to Goryeo becoming a vassal state of the Mongol Empire. This ended decades of military resistance and established a tributary relationship that lasted for nearly a century.

After the death of King Gojong, Wonjong returned from the Mongol court where he had been held as a hostage. He was installed as king with Mongol approval, marking the beginning of direct Mongol influence over Goryeo's throne.

King Wonjong ordered the dissolution of the Sambyeolcho, a elite military unit that resisted Mongol domination. The Sambyeolcho rebelled and held out on Jeju Island until 1273, when Mongol-Goryeo forces crushed them, ending organized military opposition to Mongol rule.

After succeeding King Sawlu, Kyansittha suppressed a Mon rebellion and stabilized the Pagan Empire. He implemented administrative reforms, promoted Theravada Buddhism, and fostered cultural exchange with the Mon people, strengthening the empire's unity and laying the foundation for its golden age.

Kyansittha actively promoted Theravada Buddhism as the state religion, building numerous monasteries and stupas. He invited Buddhist monks from Sri Lanka and the Mon region to spread the faith, which became a unifying force in the Pagan Empire and shaped Burmese religious identity.

King Kyansittha commissioned the construction of the Ananda Temple in Bagan, one of the finest examples of Mon-style Buddhist architecture. The temple, completed around 1105, features four standing Buddha statues and intricate carvings, and remains a major pilgrimage site and symbol of Pagan's cultural achievement.