Throughout the history man has been selfish and individualistic, because of his egoistic tendency man tried to accumulate the necessary and unnecessary resources in order for survival. Because of this aggressiveness behavior, aggression was passed down from one generation to the other. Aggression has been a major problem affecting all human beings since the beginning of civilization to today. The worst part of it is that this day is found in all spheres of angels, in religious perspective, political, economical as well as in everyday life. The difficult of defining aggression lie in the fact that there are many different kinds of aggressive behavior. Animal aggression has obvious parallels to the aggressive behavior exhibited by humans. Which type of behavior that will exhibited therefore depends on the environmental circumstances, the active neural circuits and the specific 'triggering' stimuli and/or how useful the behavior is to the animal/human exhibiting the aggression. All of these factors should therefore be considered when attempting to explain aggressive behavior-it is not enough to simply say he/she is aggressive or that tribe, society or community is aggressive. In chapter two, one may note that the aggressive behavior which is found among the selected tribes differs based on the perception of morality as well as the sense of humanity. Hence it is through these tribes that we were able to pinpoint out and to understand how the Africans behave in a certain way. It was found out that some nations or tribes express their aggressive behavior not for injuring intentionally, but they do it for their common good. To live in peace and harmony while some they do it as a hobby to see other people suffering and for them to be respected and be fearful. Human beings are not inherently violent, rapacious animals bent on brutality and self-destruction. Aggression is rather a result of repulsive cultural and political environment that conspire to frustrate and degrade our humanity. Aggression may never be eliminated entirely, but it can be reduced to very low levels by creating societies of freedom, self-awareness and compassion.