Be considered as one of the most successful teams in Southeast Asia, Vietnam has already won AFF Championship twice, alongside with a gold medal in the 1959 SEAP Games as South Vietnam. In the continental level, the team had reached fourth place twice as South Vietnam in AFC Asian Cup, before advancing quarter-final twice as a united nation. However, the team has never qualified for World Cup or Summer Olympics so far. Vietnam's main rivals are other strong ones in the AFF, of which Thailand is seen as its biggest rival.