== India and Brazil == 

 Someone should look into whether there is any basis for including India and Brazil as modern "great powers." If Germany and Japan, the other members of the G4, are considered to have reemerged as such, I think there may be a case to be made for India and Brazil. India is a nuclear state with a stronger military than any of the other G4 nations, while Brazil has the world's 6th largest economy, ahead of the UK and Russia. Both are considered "potential superpowers" of the 21st century.