You are going to need to contact the Immigration & Naturalization Service.
You can either be born by American Citizens, granted a citizenship trhough Naturalization, Have A green card and is married to a US citizen, or a green card holder under the military or a family of one. Usually the most common aside from being a citizen by birth is through naturalization process.
"Spouses can be granted US citizenship by being married to an American citizen for two years." "Regular, responsible, and informed voting is one of the duties of citizenship." "Some countries allow their residents to maintain dual citizenship."
Yes they retain citizenship.
They should be able to through an American Embassy.
yes. it can, but not always is.
It is illegal.
Depends. The first option is naturalization if the non-EU national has no EU ancestry/descent/origin. - Have a clean criminal record - Be over 18 years of age - Be married a minimum of 3 years - Speak Greek fluently - Live in Greece for 3-7 years It takes years for these applications to be examined and processed. You can read all about it here, in which the process is detailed from beginning to end: "Greek citizenship by naturalization" http://livingingreece.gr/2007/03/16/greek-citizenship-citizen-through-naturalization-american-spouse-greece-marriage-work-residence-permit/ The second option is to claim citizenship through an ancestor born in an EU country, if applicable. - Often no language requirement - Often no fee - Often no residency requirements, in fact one can apply outside the country at a consulate or embassy - Doesn't matter who you are married to You can read all about it here: "How to get EU citizenship by ancestry or naturalization" http://livingingreece.gr/2008/03/18/how-to-acquire-eu-citizenship-through-ancestry-or-naturalization/
Answer: If you are married to an American citizen than you have to wait 3 years before you can file for citizenship otherwise you have to wait 5 yrs. The citizenship process can take up to 1yr.
The two types of citizen are the citizen of the United States and the citizen of the state. The US citizenship was recognized from the 14th Amendment of the US Constitution.
I believe that you're guaranteed a citizenship when you marry a citizen, but being an illegal complicates the matter.
No. Neither will automatically become citizen of the other country.
The applicant should be 18 years and older with green card for a period of minimum 5 years continuous physical residence. Its 3 years for those who have married a US citizen and continue to do so. For persons in the US army minimum 1 year of service qualify them to apply for US citizenship.