8/ Another Euro 2020 jersey that caused considerable controversy was the North Macedonia 🇲🇰 kit.
The kit showed the term “Football Federation of Macedonia” which according to Greece 🇬🇷, was in contravention with the terms of the Prespa Agreement of 2018 which brought about normalised relations between the two countries.
https://en.wikipedia.org/wiki/Macedonia_naming_dispute
https://greekreporter.com/2021/06/12/greece-objects-to-north-macedonia-kit-in-uefa-euro-2020/
9/ Sometimes the conflicts go the other way - from on the field to off.
Famously, in 1969 long-simmering tensions between El Salvador 🇸🇻 and Honduras 🇭🇳 boiled over at a World Cup qualifier, which lead to rioting, and then to the start of a full military conflict.
It is estimated about 3,000 people died in what became known as the "Football War"
https://en.wikipedia.org/wiki/Football_War
#geoweirdness