How has the fall of Communism changed the balance of power in the world?

The fall of communism changed the balance of power n the world for different reasons. For example, president John F Kennedyset a new tone for the nation in his inaugural address by challenging Americaans to "ask not what your country can do for you, but what you can do for your country". The was also the Bay of Pigs invasion, which was when Spain took over Cuba, thinking they could be Republicans..:)