What is the US dollar?

There has been a lot of chatter over the last year about the dollar losing its dominance as a world reserve currency. I believe that the dollar will not lose that dominance overnight. The bulk of its trading partners are in the Euro Zone and North America. I have no doubt that nations like France and Germany will try to maintain close ties with the United States and any China-Russia currency bloc that may ensue from the attempts of emerging markets to develop their own currency.