Set in Thunderblast's universe. The Great Gryphon War was a major conflict between the Gryphon Empire and the Kingdom of Equestria, taking place almost entirely on Gryphon soil, with the exception of a few air battles over the Antlerctic Ocean and Europone. The conflict lasted over ten years and had claimed the lives of 30,000 Equestrian soldiers and 72,000 Gryphon soldiers. The war ended after the Gryphon capital of Avion was raided by Equestrian Army units, who forced the Gryphon government to surrender.