The cooperative spirit also rallies this group. Hence they will stand in opposition to any group outside their community that opposes them. Those that oppose them could be a totally different group of people as to race and culture. This group could also be very similar when we view this opposition as a threat of war. We once again see the economic motive.
Wars are land disputes.
Land is the most valuable thing that exists for man. Thus, land is money. Herein is the crucial nature of man's existence and the confrontation with other men for land and money. There are some other questions that will bring us closer to the stark realities of our discussion. Oppression and exploitation breed resistance and conflict with the oppressive elements.