Goguryeo–Tang War
War ending the Three Kingdoms of Korea period.
It marked the end of the Three Kingdoms of Korea period and triggered the subsequent Silla–Tang War over the spoils.
- belligerents
- Goguryeo vs. Tang dynasty
- key_allies
- Silla (with Tang), Baekje (with Goguryeo)
- outcome
- Tang–Silla victory; fall of Goguryeo
Lore & Background
The war began after Silla requested Tang military assistance against Goguryeo. In 642, the Goguryeo military dictator Yŏn Kaesomun murdered over 180 aristocrats and seized the throne, while Baekje under King Uija attacked Silla. After Emperor Gaozong succeeded Taizong, the Tang–Silla alliance conquered Baekje in 660.
Reader's Guide
The Goguryeo–Tang War was a pivotal conflict that ended the Three Kingdoms of Korea period, which had lasted since 57 BC. The war demonstrated the military capabilities of both the Tang dynasty and the Korean kingdoms, with notable sieges such as that of Ansi Fortress, where the defenders repulsed repeated Tang assaults. The alliance between Tang and Silla proved decisive, but the war also sowed the seeds of the Silla–Tang War, as the two former allies fought over the conquered territories. The conflict highlighted the importance of internal stability: Goguryeo's collapse followed the death of its strongman Yŏn Kaesomun and the ensuing chaos. Overall, the war reshaped the political map of East Asia, leading to Silla's unification of most of the Korean Peninsula under its rule.
Did You Know?
- The Tang army built a huge mound to try to capture Ansi Fortress, but the defenders captured and held it.
- The war triggered the Silla–Tang War, in which Silla and Tang fought over the spoils they had gained.
Frequently Asked Questions
Who were the main belligerents and allies in the Goguryeo–Tang War?
Goguryeo fought alongside Baekje, while the Tang dynasty relied principally on Silla as its key ally on the peninsula.
Why is the Goguryeo–Tang War considered a turning point?
It ended the Three Kingdoms period and reshaped the political map of the peninsula, while also igniting the subsequent Silla–Tang War over who would govern the conquered Goguryeo territories.
What were the immediate consequences of Goguryeo's fall?
The Tang–Silla alliance fractured almost at once, as both powers clashed in the Silla–Tang War to claim control of the former Goguryeo lands and its spoils.
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