According to FIFA, the global list of the best national football teams is as follows:

1. Argentina
2. Brazil
3. Italy
4. Spain
5. Germany
6. Czech Republic
7. France
8. Portugal
9. Netherlands
10. Greece
11. England
12. Croatia
13. Romania
14. Ghana
15. Scotland
16. Mexico
17. Cameroon
18. Turkey
19. Bulgaria
20. Poland

From this list, 11 teams are in the UEFA Euro Cup this year. Turkey, Sweden, Austria, Switzerland and Russia are included in the next 50.
We can only assume that it will be a very competitive event. As I read some weeks ago: it is for sure the most competitive football event in the world. We will have eleven of the best teams in the world. Even better: 8 out of the 10 best teams in the world will be playing in Switzerland and Austria next summer.