Re: STAR TREK INTO DARKNESS - Grading & Discussion [SPOILERS]
Rewatch the film. They don't mention the Eugenics Wars but they do mention him trying to lead the world and towards the end Spock mentions that if he gets the seventy-two other Augments, that he would again start trying to cleanse those that don't meet their standards.
If you have more voices in your head than bullets in the chamber, no gun for you. - Christopher Titus