|The Eorzean Alliance is rooted in the Autumn War; when the nation of Gridania came under attack by the nation of Ala Mhigo. The nations of Ishgard, Ul'dah, and Limsa Lominsa answered its call for aid and swiftly routed the Ala Mhigan forces. The Alliance remained tentative in the ensuing years until the fall of Ala Mhigo to the Garlean Empire. However, after the Battle of Silvertear Skies, Ishgard pulled out of the Alliance to focus on the Dragonsong War. The remaining nations split apart and the Alliance dissolved while the Age of Calm began.|
The Alliance was rekindled in the final years of the Sixth Astral Era, the city-states of Ul'dah, Gridania, and Limsa Lominsa reforming their Grand Companies and taking on the VIIth Imperial Legion and its mad legatus Nael van Darnus. Though successful in defeating the imperials, they could not forestall the Seventh Umbral Calamity. Today, in the Seventh Astral Era the Alliance still holds and, with the end of the Dragonsong War, it is joined once more by the nation of Ishgard.