To be honest, if those real world issues are a problem in this game we are probably better off without those users/countries.
I would not want to share my hobby with people holding an eternal grudge against each other.
Größter Knecht aller Zeiten aka His Excellency aka President for Life aka Field Marshal Al Hadji aka Lord of All the Beasts of the Earth and Fishes of the Seas aka aka Conqueror of the Buzzerbeater Empire in Europe in General and Austria in Particular