I think what OP means is owning a Bitcoin in a specific country and using it to transfer to other people that are located in different counries.
Maybe OP is curious about how to get or buy Bitcoin using some official platform or using legit cards, fiat, etc. in a country that is very strict when it comes to cryptocurrency.
Because if we just transfer a Bitcoin from our personal wallet to another walllet, it's all good even which country you are from.