The European Championship, commonly known as the UEFA European Championship or simply Euro, is the main international football competition contested by senior men's national teams of the members of the Union of European Football Associations (UEFA). As of the latest edition, which was Euro 2020, the number of teams participating in the tournament is 24.
The tournament format includes group stages, knockout rounds, and a final to determine the champion of Europe. The increase from 16 to 24 teams was introduced starting from Euro 2016, allowing more nations the opportunity to compete in one of the most prestigious football competitions in the world.
Each participating nation goes through a qualification process to earn a spot in the final tournament. The expansion to 24 teams has not only increased the competitiveness of the championship but has also provided fans with more excitement and a broader representation of European football talent.