Second Auro-Quenminese War
The Second Auro-Quenminese War was an armed conflict that pitted the Aurucolian Empire against the Empire of Quenmin, with the Joyonghean Empire providing diplomatic support and military assistance to the former as part of the Great Eastern Rivalry. The Quenminese long held its sights against the island of Taoyuan, a product of irredentism that traces its origins to the Bình Minh Vàng War. Secret plans had been composed by the Quenminese military during the first years of the Great Eastern Rivalry, inspired by fears of increasing Joyonghean influence ever since the establishment of Joyonghean-Aurucolian cordial relations However, the plans were turned down due to other ventures in North Oceania and the First Joyonghean-Quenminese War and the Jeongsa War where Aurucolia declared neutrality in both conflicts. Subterfuge and espionage were preferred, but failed to make headway due to Joyonghean and Aurucolian counter-efforts. Two months before the war's commencement, the United Kingdom knew of the plans of the invasion and urged Quenmin to abandon this prospect, but the latter continued to draw up plans under the guise of forfeiture. Finally, in 1925, with the approval of Emperor Xuất Nghìn, the Quenminese invasion of Aurucolia's Far East colonies commenced under the pretense of avenging the execution of their political operatives involved in a failed coup in Taoyuan, to which the Quenminese portrayed it as an attack on their diplomatic entourage.
After around a year of fighting, despite Aurucolian resistance with Joyonghean diplomatic and military assistance, the Quenminese annexed Taoyuan, Sarkoros, and Tungging Island via the Treaty of St. Márton Shaoshui. The war brought significant consequences that resonated through East Asianna and the rest of the world. The Quenminese victory heightened fears in Joyonghea about Quenminese unceasing expansionism and military power, and exacerbated the already long-running feud between the two Asiannan empires. Joyonghean efforts of espionage and subterfuge, particularly in Taoyuan, were thwarted by Quenminese counterparts, which provided the Quenminese government and military, especially from the enthusiasm of the Quocvangists, the excuse to invade Joyonghean outright. Beyond East Asianna, the United Kingdom ceased all diplomatic relations with the Empire of Quenmin, and the Empire formally established relations with the rest of its rivals, such as Archadia-Archedes, the Ruzhite Empire, and the Guadosalam Federation. Subsequently, with the finalization by the Autocratic East Europan Imperial Alliance, Quenmin entered the Cremologna Pact, which helped set the Empire's course to fighting against the Allies in the Second Europan War.