In the United States and several other countries, 2.5 million children play baseball in an organization called Little League. They play on teams in their hometowns. Their parents and other adults in the community coach or instruct them and serve as umpires to make sure that everyone follows the rules. Local businesses give money for the ball fields and the uniforms. Local teams compete against each other and the winners get to play teams that are more distant. Eventually, the top teams go to the Little League World Series.