Founded in 2018, the UEFA Nations League was devised to provide nations with more competitive matches against equally ranked opposition.
Here's everything you need to know about the competition.
The UEFA Nations League was founded in 2018 as a means of reducing the number of meaningless friendlies on the international football calendar and matching teams with equally ranked nations.
Teams across the European continent compete in a league structure which includes promotion and relegation, with the highest performing sides in League A engaging in a knockout Nations League Finals tournament with a trophy up for grabs.
The Nations League can also boost teams' chances of obtaining qualification for Euros and World Cup finals, with three of the 24 places at Euro 2024 determined by Nations League play-offs.
The league phase matches will be played in autumn 2024, with the finals to be staged in June 2025.
Nations League 2024/25 dates:
League A:
League B:
League C:
League D:
All teams will play six matches in their Nations League group, one home and one away against each opponent.
The 2024/25 Nations League will comprise of four leagues - League A to League D - divided in line with teams' performance in the previous 2022/23 Nations League.
Within each League there are four different teams, again categorised in line with rankings from the 2022/23 Nations League.
The UEFA Nations League began in 2018/19, with Portugal crowned the inaugural winners of the new competition after a 1-0 win over over the Netherlands in Porto.
UEFA Nations League winners: