The 10 Most Powerful Nations in the World

The United States might have been the most powerful nation in the world for decades, but is it losing its grip? What rising powers could be taking over from the US and should those who currently reside at the top of the pile be worried about the stability of their authority?
Here’s our list of the top ten most powerful nations in the world and a few predictions from Billionaires on how the global landscape might change in the not-so-distant future …
  Iran

 Iran is one of the most powerful countries in the Middle East and its relations with powerful countries such as the US have been developed in recent months since Hassan Rouhani became president of Iran in 2013, Iran remains feared around the world.
 Brazil
 Brazil’s global influence has grown exponentially in the last few years as the Latin American’s economy  But inequality is still rampant across the country.
 Olympic Games in two years time, the profile of the nation is increasing.