The Alola League is a Pokémon competition held in the Alola region, introduced in the anime series Pokémon Sun and Moon. It allows trainers to battle for the title of Champion after earning enough badges from various island challenges. The league features a unique format, where trainers compete in a series of battles to showcase their skills and strategies. In the Alola League, trainers like Ash Ketchum and his friends participate, using their Pokémon to face off against each other. The league emphasizes teamwork and friendship, reflecting the values of the Alola region. It culminates in a thrilling tournament to determine the strongest trainer.