beijing - implementation of the apec summit in 2014 in beijing, china became the arena of interests between the two shaft power of the world economy, the united states on one side with china and russia on the other.

Write the above sentence using proper case.
Beijing - Implementation of the APEC summit in 2014 in Beijing, China became the arena of interests between the two shaft power of the world economy, the United States on one side with China and Russia on the other.