High Quality Content by WIKIPEDIA articles! At the core of the balance of power theory is the idea that national security is enhanced when military capabilities are distributed so that no one state is strong enough to dominate all others. If one state gains inordinate power, the theory predicts that it will take advantage of its strength and attack weaker neighbors thereby providing an incentive for those threatened to unite in a defensive coalition. Some realists maintain that this would be more stable as aggression would appear unattractive and would be averted if there was equilibrium of power between the rival coalitions.