Once you get a green card to become a US citizen you need to have had the green card with continuous physical presence in US for minimum period of 5 years and above the age of 18 years. Using the US Immigration Form N-400 the naturalization process can be started end of which you will be given the citizenship certificate as proof that you are a US citizen.
Speak about this with the recruiter first, and they can either tell you how that works, or they can find out that information. I did obtain citizenship through military service, but there are easier ways to go about than I did, especially as I was indecisive about whether or not I wanted to become a citizen until after my military service had expired.
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.
Yes, The residents of US territories have US citizenship
The US recognizes dual citizenship.
No. The US president MUST have US citizenship only.
If you are born in the US you obtain US citizenship by birth. Another way to obtain citizenship is through the naturalization process by applying for US citizenship using Form N-400 if you are eligible.
Yes dual citizenship is allowed for US citizens.
US citizenship can only be renounced in writing at a US embassy (i.e. outside the U.S.). Be sure you have citizenship in another country before doing this.
NoSee US Citizenship and Moving Abroad.http://www.richw.org/dualcit/faq.html
Yes only if that person is a American applying for dual citizenship in Brazil. A person from Brazil would be unable to keep citizenship in Brazil if they wanted US citizenship. because the US requires you to give up your citizenship to all other countries except Canada citizenship.
If he is a US citizen that happens to be in Turkey, then yes. If he has Turkish citizenship, he will need to attain US citizenship (either dual citizenship or give up his Turkish citizenship for an American one).
If the parents are US citizens, then the child gets duel citizenship (citizenship in the country he/she is born in [depending on local laws], and US citizenship). Any person naturalized in the US or by American parents is a US citizen.
Only if you are born in the US.