Results under Humberto Coelho were far from impressive and while performances improved when Jo Bonfrere took over, he surprisingly quit once qualification had been achieved.
Four years ago the Koreans reached the semi-finals on home soil on a wave of passionate support from a thrilled nation.
However, before that tournament they had not won a single game in 14 attempts at the World Cup Finals.
Manchester United winger Park Ji-Sung and Tottenham full-back Lee Yong-Pyo were stars of the 2002 campaign and will feature heavily once again.
Coach: Dick Advocaat
One to watch: Park Ji-Sung
World ranking: 29
Previous tournaments: 5
Best finish: Fourth place (2002)