The Silla-Tang victory ended Yamato Japan's involvement in Korean affairs and extinguished the Paekche restoration movement, reshaping East Asian geopolitics.
Key Facts
- Battle dates
- 27–28 August 663 (lunar); 4–5 October 663 (Julian)
- Location
- Baengma/Baek River, lower Geum River, Jeollabuk-do, Korea
- Victor
- Allied forces of Silla and Tang China
- Defeated parties
- Paekche restoration forces and Yamato Japan
- Outcome type
- Decisive Silla-Tang victory
Location
Cause → Event → Consequence
Following Tang China and Silla's conquest of Paekche in 660, remnant Paekche loyalists launched a restoration movement and sought military assistance from Yamato Japan. Japan dispatched forces to support the Paekche cause, bringing the regional powers into direct conflict with the Silla-Tang alliance along the Korean peninsula.
On 27–28 August 663, Silla and Tang forces engaged the combined Paekche restoration army and Yamato Japanese fleet on the Baek River (lower Geum River) in present-day Jeollabuk-do. The two-day naval and land battle ended in a decisive defeat for the Paekche-Yamato alliance.
The victory forced Yamato Japan to withdraw completely from Korean peninsular affairs, effectively ending Japanese military engagement in Korea for centuries. The Paekche restoration movement was crushed, consolidating Silla and Tang dominance over the peninsula and prompting Japan to reassess its foreign and domestic policies.
Belligerents & Mobilization Analysis
Side A
2 belligerents
Side B
2 belligerents