In the fictional setting of the BattleTech universe, the Capellan March is an administrative subdivision of the Federated Suns. Originally one of five Marches, the Capellan March grew with the disbandment of the Terran March. Also, the Sarna March was disbanded following Operation Guerrero and the subsequent Lyran secession from the Federated Commonwealth. Though most of the Sarna March was either gobbled up by the Capellan Confederation or became part of the Chaos March, the Achernar PDZ remained in Federated Suns' hands and was added to the Capellan March.