The World Cup of Hockey is an international ice hockey tournament. Inaugurated in 1996, it is the successor to the Canada Cup, which was held every 3 to 5 years from 1976 to 1991 and was the first international hockey championship to allow nations to field their top players. The World Cup has occurred thrice before on an irregular basis, with the United States winning in 1996 and Canada winning in 2004 and 2016. Following the 2016 tournament, it is uncertain if the series will continue, with the 2020 tournament being cancelled.