27 January 1385 to 2 January 1387 (1 year, 11 months, 6 days)
Location
Modern day Taiyō
Result
Both sides claim victory
Trinterian withdrawal from Yueliang
Signing of the Treaty of Zung Wa
The Trinterian-Taiyoan War was a military conflict between the Great Imperial Confederation of Taiyō and the Trinterian Commonwealth between 1385 and 1387. The war was sparked by the shifting allegiances of tribal peoples such as the Yuèliàng on the frontier borderlands, and increasing control of the Taiyoans over their administration following their successful war of unification. Answering a plea from the Yuèliàng patriarchs, in the Winter of 1384, Empress Freida Aein Feldrot nar Jisak'sa Ke'sed of the Trinterian Commonwealth ordered more than 140,000 soldiers of the Banner Army, led by Battlemaster Ilia Wyk nar Osten'ka to march through the Northern Marches and launched an invasion of the Realm through Yuèliàng the following Summer. Trinterian forces managed to capture vast swaths of territory with the help of collaborative Yuèliàng elements before being defeated by a Taiyoan-led loyalist coalition of more than 300,000 at the Battle of the Misty Marsh. Coalition forces inflicted heavy casualties on Trinterian forces, forcing Warmaster Ilia Wyk to order a general retreat back to Zung Wa, where the final battle of the conflict took place when coalition forces attempted to besiege the city, but were thwarted by a daring but costly attack by Trinterian and revolting Yuèliàng forces. Following a protracted stalemate and heavy casualties on both sides, Ilia Wyk, representing the Commonwealth, apologized to the Taiyoans for the invasion and was granted safe passage back to Trinteria with her remaining forces. In the years that followed, further negotiations were held to solidify the border between the two empires. Though Yuèliàng independence and Trinterian dominance over the Realm were never achieved, greater autonomy for the tribe was accepted as a term for peace by the Taiyoans, resulting in both sides declaring victory in the War.