The Alliance-Confederation War was the last conflict waged by the Alliance of Great Races and was waged primarily against the Aschen Confederation, each faction trying to assert its dominance over the Milky Way in the aftermath of the Der'kal invasion of the galaxy. With the Allied forces depleted from years of holding out against the alien armada and those of the Aschen emerging relatively untouched, the numerically-superior Alliance has been unable to outright crush its adversary. Confederation tactics generally rely on the dispersal of bioweapons via stargate, targeting civilan populations over military targets, and their inheritance of advanced Der'kal technology has only made the situation more dire.