No. The reason we don't kill each other or engage in other aggression is because we risk getting seriously hurt or suffering other serious consequences in the

No. The reason we don't kill each other or engage in other aggression is because we risk getting seriously hurt or suffering other serious consequences in the process. This is true from the individual up to the national level. There's a reason nuclear nations (definition to include non-nuclear nations that are sufficiently good friends with nuclear nations) don't get in fights with each other.