Yes Dual Citizenship is allowed for US citizens.
Spain does not have dual citizenship agreement with the US.
Yes it is allowed. If you obtain Canadian citizenship, you are allowed to maintain your American citizenship as well. But you should always carry both their passports when traveling between the two.
majority
Yes you can. the UK and the US both allow multiple citizenship
The benefits of citizenship includes having rights and protection from the country of citizenship. In the US for example, citizens can re-enter the country multiple times.
No.
Yes if you can get citizenship for that child in your home country.
LOL: No US Citizenship is required. However a few people per year are allowed to earn citizenship via service but those numbers are limited.
The benefits of citizenship includes having rights and protection from the country of citizenship. In the US for example, citizens can re-enter the country multiple times.
If you apply for citizenship in another country your US citizenship is automatically revoked. The US does not recognize dual citizenship. You revoke it in writing at a US embassy, outside the US.
A person with an expired visa must apply for a new visa prior to applying for US citizenship. You can't apply when you have an expired visa.
Yes, The residents of US territories have US citizenship