Mondstadt War

The Mondstadt War (22 Cermie S147 - 5 Narvinye S148), also known as the Ataranic Invasion of Mondstadt is the theatre of war for the Commonwealth of Mondstadt. It was primarily fought between the Thalassian Elves and Humans against the Ataranic Empire.

The operation put into action some of the Ataranic Empire's goals into controlling the Arctic Sea trade, and putting an end to the last resisting Thalassian Elves who fled to Mondstadt and Veldrun. It aimed to use Mondstadt's land to bypass Veldrun and conquer the Redorian Peninsula. It was also intended that Mondstadt would be a slave territory while acquiring precious Mondstadtian resources. Their ultimate goal included the bondage of the Thalassian Elves, Ataranisation and deportation of Humans, and establish total dominance over Zemuriah. Once Mondstadt was conquered, Veldrun was to be isolated, while Orandas would be invaded.

Inspired by a swift victory, the Ataranian command placed three million personnel, the largest last invasion force in history along a massive border. The offensive marked a massive escalation of the Second Great War, both geographically and in the formation of an Allied coalition including the entirety of Zemuriah's nations.

The area saw some of the largest battles, most horrific atrocities, and highest casualties, all of which influenced the course of the Second Great War. Many captured Thalassian Elves and Humans were starved to death or executed by their captors. Those who escaped created partisan and guerrilla movements, the most famous one being led by Mattias Roel Tito. The war also showed the capability of the Thalassian Elves and Humans to fight a war of attrition, in which they developed the scorched earth policy, in which none were left for the invaders to use.

The tide of the war came when the Autumn Rains began to bog down the Ataranic Forces. Coupled with intensified guerilla campaigns by the defenders, painfully slowed the Ataranic advance. By winter, the Alliance slowly began to gain the upper hand. The winter in Mondstadt was the harshest in Zemuriah. This favoured the defending Alliance forces as the Ataranic forces were not prepared for its effects. With the absence of foodstuffs, few warm clothing, and staggered supply lines, the Ataranic forces were halted just 5 kms from Mondstadt City, where the climactic Battle of Mondstadt took place. The battle finally put an end to Ataranic ambitions of conquering Mondstadt, as the invaders were forced back.

The failure of the invasion reversed the fortunes of the Ataranic Empire. Operationally, the Ataranic forces achieved more victories and occupied at least 1/3rd of Mondstadt's land. Despite these successes, the Ataranic offensive stalled near Mondstadt City, and the subsequent Alliance winter counterffensive pushed the Ataranic forcesd back. The Ataranic planners had confidently expected a quick collapse of Mondstadtian resistance as in Arracourt, Septia, and Onth'Thalas, but the combined efforts of the Thalassian Elves and Humans absorbed the Ataranic forces' strongest blows and bogged it down in a war of attrition, in which the Ataraniers were unprepared. The diminished Ataranic forces could no longer attack along the entire Mondstadt front, and subsequent operations to retake the initiative such as in the Battle of Vilima eventually failed, resulting in the Ataranic Empire's retreat and collapse.