At the end of Halo 3 the ... i think general says to the arbiter that he will never forgive his people (the covenant) for what they did to his people (the earthlings) i just want to know what that is?! and what started the war between them unless that is what started the war. it sounds like a plot to a prequel to halo honestly... I havnt played Halo Wars yet so if it explains that in Halo Wars dont mock me! lol