A family was a gathering of those who were related by blood, while a country was a gathering of countless families who all had the same roots. These families would share mutual benefits and live and die together as a country... This was the mainstream view of countries and families back in my original world. However, this view wouldn't be so appropriate for the world of Eich.
Eich's environment was far more dangerous in comparison to the relatively peaceful Earth. There were all sorts of dangerous magical beasts, along with the hostility of other species. Even the most basic action of "living"was highly difficult.
Back on Earth, the countries were typically gatherings of those who had the same ethnicity, nationality, culture, and so on. However, that was too extravagant to hope for in Eich. Although the humans of Eich also had countless different tribes, nationalities, and differences, all other species and Gods viewed them all as humans.