Kratos in God Of War Chains Of Olympus through to God Of War III (if we're speaking Chronologically) didn't enjoy conflict. He was originally a soldier fighting the Persians that was then cursed to be a representation of war. He had a family that Ares took them away, and so he willingly took on the curse in order to kill every god and free humanity from their helplessness under the gods. A huge thread of the sequel series is him realizing that the Pantheon were not the only gods, and that killing them all isn't as powerful as enabling humanity to defy them. And he sees his own son as the bridge that will link the humans to their own innate potential. Kratos has been entrenched in blood and warfare since he was a teenager, and has come to see conflict to be a result of those unwilling to separate their needs and wants.