Tiberius II vs Wiman of Gojoseon

Emperor Justin II, incapacitated by madness, appointed Tiberius as Caesar and regent. Tiberius effectively ruled the empire while Justin II remained nominal emperor, stabilizing the government after a period of crisis.

Tiberius II continued the war against the Sassanid Persians, achieving some successes in Armenia and Mesopotamia. However, the conflict remained inconclusive and drained the empire's resources.

Upon the death of Justin II, Tiberius II Constantine became the sole emperor. His accession was welcomed by the populace due to his reputation for generosity and competent administration.

Upon becoming emperor, Tiberius II distributed a large portion of the imperial treasury to the poor and the army. This act of generosity earned him great popularity but depleted the state's financial reserves.

Wiman, a Chinese refugee from the Yan kingdom, led a group of followers to Gojoseon and usurped the throne from King Jun. He established the Wiman Joseon dynasty, ruling from the capital Wanggeom-seong.

Wiman expanded the territory of Wiman Joseon through military campaigns, subjugating neighboring tribes and extending control over the Korean peninsula. This expansion strengthened the kingdom's power and resources.

Wiman centralized political power, reducing the influence of local chieftains and establishing a more bureaucratic administration. This reform strengthened royal authority and improved tax collection and defense.