After the death of Lois Lane and her unborn son caused by Superman (who was drugged by the Joker with Scarecrow's Fear Toxin laced with Kryptonite) as well as the destruction of Metropolis, Superman decided the world wasn't safe enough from criminals and villainy, so he created a new government in the form of a dictatorship after murdering the Joker in a moment of madness at the time when Batman was interrogating him on where he got the nuke that destroyed Metropolis. Upon starting the One Earth Regime, he made himself the High Councillor. Several heroes such as Wonder Woman, Cyborg, and even Robin joined the cause and other villains like Sinestro, Solomon Grundy, Black Adam, and Bane joined too where they were paid or coerced by Superman to join according to Ares. Doomsday was the only one who didn't join the Regime voluntarily, as Superman captured him and took control of him with a control collar, and keeping him in the Fortress of Solitude as a last resort weapon.
