Bulgaria is participating in the 2012 London Olympics.
China, London And Singapore
No Olympics in 2010, next is 2012, London
There are 208 countries participating in the Beijing Olympic games in 2008.
Yes, Iran has an athlete in some sport at the Olympics in London. You can visit the Olympic site in London, the names of the athletes and the sports they see.
My guess, 12000 are participating in the London Olympics
Karate is not one of the Olympic sports. Taekwondo is an Olympic sport and the US is participating.
Countries do not enter the Olympic Games. The Olympic Movement consists of international sports federations (IFs), National Olympic Committees (NOCs), and organizing committees for each specific Olympic Games.
Singapore sent a total of 23 athletes to compete in 9 different sports
204 countries or Participating National Olympic Committees took part in the games
Yes, there are nations that are not participating in the olympic games. Some are too poor to sponsor any athletes, and some for political reasons won't be participating.