Final answer:
In small, densely interconnected communities, it is difficult for groups with existing factions to coexist peacefully. Cooperation becomes challenging as groups become larger and are forced to split up. Negotiations and consensus among community leaders, as well as peaceful relationships with neighboring societies, are crucial for maintaining stability.
Step-by-step explanation:
According to Newman, in small, densely interconnected communities, it is difficult for groups with existing factions to coexist peacefully. When groups become too large, they are often forced to split up and find other areas and resources, leading to a breakdown in cooperation. This is because in such communities, maintaining order and peace relies on negotiations and consensus among community leaders, as well as peaceful relationships with neighboring societies. Stability is often built on trade, but when factions exist within groups, it becomes challenging to achieve and maintain peace.