North America United States US 9631420 298444215 12360000 1776-07-04 federal republic 2 Washington, DC true

http://en.wikipedia.org/wiki/United_states

Asia China CH 9596960 1313973713 8859000 Communist state 0 Beijing false

http://en.wikipedia.org/wiki/China

Asia Japan JA 377835 127463611 4018000 constitutional monarchy with parliamentary government 1 Tokyo true

http://en.wikipedia.org/wiki/Japan