Let me tell you that we distinguish well between the hooligans and the majority of decent fans from whatever country over here.
It was really fun to meet so many strangers visiting our country. There were expected hooligans not only from England, and therefore not only "Bobbies" reenforced our police, but contingents from other European countries, and they were a great help for our police forces. They knew the language of the possible offenders and their average behaviour, and were often able to stop riots before a start.