The Amaris Civil War was a significant conflict in the BattleTech universe, occurring in the late 28th century. It was primarily fought between the Star League and the forces led by Richard Amaris, who sought to seize control of the Terran Hegemony. The war resulted in widespread devastation and the eventual collapse of the Star League. The conflict lasted from 2766 to 2781 and involved various factions, including the House Davion and House Kurita. The war's conclusion marked the end of the Star League, leading to a period of chaos known as the Succession Wars, which reshaped the political landscape of the Inner Sphere.