It depends on the laws of the other country. US allows two citizenships, so if you have one other you can aquire the US one as well. If you are a US citizen and you move to another country, it is up to their laws about whether you can keep your citizenship if you want to take theirs.
It depends on the laws of the other country. US allows two citizenships, so if you have one other you can aquire the US one as well. If you are a US citizen and you move to another country, it is up to their laws about whether you can keep your citizenship if you want to take theirs.