FIFA
In total, FIFA recognises 211 national associations and their associated men's national teams as well as 129 women's national teams; see the list of national football teams and their respective country codes. FIFA has more member states than the UN as FIFA recognises 23 non-sovereign entities as distinct nations, such as the four Home Nations within the United Kingdom and politically disputed territories such as Palestine.
2018 FIFA World Cup squads
The 2018 FIFA World Cup was an international football tournament held in Russia from 14 June to 15 July 2018. The 32 national teams involved in the tournament were required to register a squad of 23 players, including three goalkeepers. Only players in these squads were eligible to take part in the tournament.