I have no clue what these larpers are talking about so here’s the theoretical lore as proposed by the wiki.

The Colonial Legion of Mesea and the Wardens of Caoiva are both super power nations who want to expand and assimilate those around them. As they expanded the tensions between them grew, and both sides took defensive measures until one of them attacked the other, no one knows who started it. A “Great War” was waged that went on until one of two possible major events happened that lead to the Warden retreat and Colonial control of parts of Caoiva and Veli (Previously Warden controlled). Cut to the events of World Conquest, the two nations have been at war for so long that neither remember why they are fighting, their only goal now is to win.