The international system may be described as a complex system of social, scientific, political, military and technological systems. This dynamic structure is very difficult to evaluate and it is even more difficult to predict its future.
The distribution of power potential in the international system defines the number of major powers and thus the international system’s polarity. The system would be multi-polar if the great powers are more than two; if they are two it would be bipolar and systems with only one great power are called unipolar.
It can be expected in the future multipolar world that the global economy does not settle with a couple of significant nations but rather with multiple nations of varying capabilities. In the limited arena of affairs pertaining to their country, each state with its particular notable qualities will have decisive say.
Beyond the US, Japan, China, the EU, and India are capable of economic influence due to their advancements in technology, increasing economy, and large population base. Iran, Saudi Arabia, Venezuela, African Union countries and Brazil will have an impact, owing to their large energy reserves. Russia should have preferences for both. Because of their geostrategic location such as Pakistan, Central Asia, Ukraine and Turkey, a few nations will have some regional influence because these nations are situated on the energy routes from which energy resources would be on route to other parts of the world.