I've been reading a DC comic book titled Injustice: Gods Among Us. The book basically is about how Superman accidentally kills his wife (Lois Lane) and their unborn child. He kills them because the Joker puts fear gas on him and makes him see her as doomsday. Out of rage, he flies back to Metropolis and breaks Justice League's no killing policy by killing the Joker. Basically then, Batman and Superman has a falling out and the group splits to follow those two. Superman's group is called the Regime while Batman's group is called the Insurgency.
By Damekio M.