The Asian Football Confederation 's 2007 AFC Asian Cup finals are currently being held from July 7 to July 29 , 2007 . For the first time in its history, the competition is being co-hosted by four nations: Indonesia , Malaysia , Thailand and Vietnam . The Asian Cup had previously been held every 4 years from 1956 onwards, the last cup being held in China in 2004. However, with the Summer Olympic Games and the European Football Championship also held in the same year as the Asian Cup (2004, 2008, 2012 etc.), the AFC decided to change their tradition and hold the tournament in 2007, and every four years henceforth from that date. This is the first major AFC tournament in which Australia will participate as member. Australia was the first non-host nation to qualify.