Great Britain has the largest number of athletes with 564 at the 2012 Olympics, second by the US with 539.
204 countries participated in London Olympics 2012.
USA with 530 athletes is second to Great Britain's 541 athletes on having the most athletes at the 2012 Summer Olympics
45000
14000
LONDON - 2012
London
London will hold the 2012 Olympics im pretty sure.
London in stratford
Bulgaria is participating in the 2012 London Olympics.
2012 Summer Olympics will be held in London, England
vatican
Great Britain