Have You Forgotten the Man Who Killed Darkseid?

Oa Star. Oa Star had changed completely. Oa Star had once been the headquarters of the Green Lantern Corps. Green light had spread everywhere, and its strange, magnificent buildings had possessed a grand, peaceful artistic beauty. After Darkseid's invasion, however, Oa Star had nearly suffered the destruction of even its core, despite winning that war. The rebuilt Oa Star had become the Oa Pan-Stellar Domain Alliance.