NATO Sports leagues open for everybody

[Republica Federal de Catalunya]

This post is open for everybody but I wanted to ask mainly to NATO 2022 members about their main national sports competition.

Football ⚽ is the most popular sport, Also Rugby Union, Basketball, Skate Hockey and Waterpolo are popular. But football is clearly the most popular sport by practitioners, clubs, budget and Spectators.

classified for UCL or Europa league) the next team in league will classify for Europa League.

First classifies UEFA Champions League and plays Super cup.
2nd Classifies for UEFA CL play off so play UCL or Europa League.
3rd classifies for Europa League 4th qualifying round.
4th to 7th play Europa League play off. The winner plays Europa League while the runner up plays UEFA Conference League. Along the highest classified of the play off that doesn't play Europa League.
15th and 16th play relegation play off against Primera Divisió (First division or Lliga endavant by the main sponsor. (3r to 6th)
17th and 18th are relegated to Primera Divisió 1st division while el the 1st and 2nd are automatically promoted to the Premier League.

The Cup or Copa Estrella Damm. Is the oldest football competition. First organized in 1909 by the FCF the Catalan Futbol Federation.
Is played at single match knockout round. The four professional divisions PRM, 1st, 2nd and 3rd. and the 24 semiproessional teams of the 6 each of 4 territorial divisions and the 3rd division relegated teams.

[Catarra]

Catarran Premier league and First Division both have 16 professional football teams each team plays others twice: 1 home and 1 away. The league runs from August - September to May.

The winners of the Premier league qualify for the UEFA Champions League, the runner-up together with the third placed team in the table qualify for the UEFA Europa League as well as the team who wins the catarran Cup. In case the winner of the Cup has already qualified to Champions League or Europa League, the third Europa League spot is given to the team that finishes fourth in the next 2 play conference league the last 2 are relegated to 1st Division. While 13th and 14th can avoid relegation playing a promotion against 3rd to 6th of 1a (first Catarran division).
The League winner plays the supercup against the cup (copa) winner in case the same team wins both it will play against the copa runner up.