Thomas Cup
The Thomas Cup, sometimes called the World Men's Team Championships, is an international badminton competition among teams representing member nations of the Badminton World Federation (BWF), the sport's global governing body. The championships have been conducted every two years since the 1982 tournament, amended from being conducted every three years since the first tournament held in 1948-1949.
The final phase of the tournament involves twelve teams competing at venues within a host nation and is played concurrently with the final phase of the world women's team championships, the Uber Cup ( first held in 1956-1957). Since 1984 the two competitions have been held jointly at the various stages of play.
Of the twenty-six Thomas Cup tournaments held since 1948-1949, only three nations have won the title. Indonesia is the most successful team, having won the tournament thirteen times. The current cup holder, China, which did not begin to compete until the 1982 series, follows Indonesia with eight titles, while Malaysia has won five titles.
The final phase of the most recent edition of Thomas Cup in 2010 was contested in Kuala Lumpur, Malaysia. The 2012 tournament will be held in Wuhan, China from May 20-27, 2012.
Uber cup
The Uber Cup, sometimes called the World Team Championships for Women, is a major international badminton competition contested by women's national badminton teams. First held in 1956-1957 and contested at three year intervals, it has been contested every two years since 1984 when its scheduled times and venues were merged with those of Thomas Cup, the world men's team championship. The Uber Cup is named after a former British women's badminton player, Betty Uber, who in 1950 had the idea of hosting a women's event similar to that of the men .She also made the draw for the 1956-1957 inaugural tournament, which took place at Lytham St. Annes in Lancashire, England.
The cup follows a similar format to that of the men's competition of the Thomas Cup. China is the most successful team, having lifted the trophy eleven times. Japan is second, having won it five times, followed by Indonesia and United States, each with three cups.
source: wikipedia.com