International cricket matches are played between teams representing their nations, normally organised by the International Cricket Council (ICC). The main forms are Test matches, One-Day matches and Twenty20 matches. Most games are played as parts of "tours", when one nation travels to another for a number of weeks or months and plays a number of matches of various sorts against the host nation. The ICC also organises competitions that are for several countries at once, including the Cricket World Cup & ICC T20 World Cup.