Imjin War (Japanese Invasions of Korea)
In 1592 Toyotomi Hideyoshi launched a massive invasion of Korea as the first step toward conquering Ming China. The invasion exposed the structural weakness of a Joseon state that had spent two centuries privileging civil yangban administration over military expertise: the army was undertrained and under-equipped, and Japanese forces overran much of the peninsula within months, sacking the capital. Joseon survived through three factors: the naval campaigns of Admiral Yi Sun-sin, whose turtle ships destroyed Japanese supply fleets; the guerrilla resistance of monk armies and peasant 'righteous armies'; and the intervention of Ming China, whose costly aid helped accelerate the Ming's own fiscal collapse. Amid the chaos, enslaved nobi burned government slave registers in a social uprising. The war ended with the Japanese withdrawal after Hideyoshi's death in 1598. It was an external war of conquest that devastated Korea demographically and economically yet left the Joseon state structurally unchanged — still neglecting its military, and thus similarly unprepared for the Manchu invasions of 1627 and 1636-37 that would impose Qing tributary status.
- Year: 1592 CE
- Category: Military
