The Earthbreach War was a conflict between Lucivius and a resistance movement calling themselves the Defenders of the Throne. In 56 AU, Lucivius laid claim to the throne of Magnus, and amassed an army of followers to help him take what he believed was rightfully his. He travelled to Earthbreach to seek out the giant golden throne from which Magnus supposedly ruled his empire. There is no evidence that the throne itself was ever found, but Lucivius established a military regime on Earthbreach and proceeded to claim all of Skytopia as his birthright.