Thailand secured a historic World Cup 2015 berth on Wednesday night when they beat Vietnam 2-1 in Ho Chi Minh City to finish fifth at the AFC Women's Asian Cup.
Two second-half goals by Kanjana Sung-Ngoen gave Thailand a 2-0 lead until Nguyen Thi Tuyet Dong cut the deficit minutes before the final whistle.
Coach Nuengrutai Srathongvian's team became the first Thai side, men or women, to qualify for the World Cup at the senior level. Thailand has played in a couple of World Cup finals at the junior level.
"We have achieved our World Cup dream," said Nuengrutai whose team also beat Vietnam by the same scoreline in the SEA Games final last year.
The top five teams at the Women's Asian Cup qualify for the 2015 Women's World Cup in Canada.
Thailand will join world champions Japan, Australia, China and South Korea as Asia's representatives at the finals.
That quartet progressed to the Women's World Cup as semi-finalists at the Women's Asian Cup.
The Thais dominated the first half but Vietnam goalkeeper Dang Thi Kieu Trinh denied them with two fine saves.
After a goal-less first half, Thailand went ahead on 48 minutes following a slip by a Vietnamese defender which allowed striker Kanjana to calmly slot home.
It galvanised the visitors who were outclassed in their first two group games in Ho Chi Minh City.