The sixth is that power is an important factor in the system. If a state had no power, then it would cease to exist as a state because a stronger one would take control. The greater the power of a state, the greater its relevance in the system. For example, a state like South Africa fails compared to the United States and China due to the significant difference in power levels. However, when the level of power between states is relatively close, they will not fight. This is the seventh and final assumption, which is that there is a balance of power in the system. States that have roughly the same amount of power will not fight each other because that would jeopardize their chances of survival. They would simply suffer an excessive loss by attempting to fight a battle that would not be necessary. This balance keeps the system in an alien peace where fear of other states is the only thing keeping the entire system from being in a state of perpetual chaos. Compared to other theories, Realism is the most useful when looking at the international system. Both liberalism and conservatism fail to recognize the impact that power has on the system. While each focuses on a different aspect, the blood side of the system simplifies complex issues into more manageable pieces. The fundamental differences of each can be debated, but the ability to carry out the actions desired by a state is the deciding factor in determining who is the most important actor. It can be used to explain the outcomes of different events throughout history more effectively than