Some of you may be wondering how the teams in Asia are determined for the FIFA World Cup.
Well, Asia (AFC) had preliminary rounds as a qualifying tournament which narrowed the teams down from 42 to 20, and are then split into 5 groups of 4. Winners and runners-up moved on, and these 10 teams are then put into 2 groups of 5. The winner and runner-up of each group qualifies, with the two 3rd placed teams played a playoff against each other. The winner of this game then gone into a playoff with the 1st placed OFC team.

Teams that qualified for 2010 World Cup: Australia, Japan, Korea Republic, Korea DPR