yes, you will then have to get a working permit.
No. A US citizen can be a tourist in Germany VISA-free for 90 days.
No, just bring US Passport with you and that's it.
Yes a Zambian citizen can marry a Us citizen and work in the us because the zambian citizen can obtain a citizenship by marriage and automatically become a citizen of us and is allowed and qualified to work there.
yes through paper work and then you are welcome to come to the us as a us citizen.
Yes
You go to immigration and start the paper work.
Einstein was born in Germany and was a German citizen. He naturalized as a US citizen in 1940.
Yes.
If you're a US citizen, then you are. If you're not a US citizen and aren't 100% certain the answer is yes, then the answer is no.
NOPE
yes
yes
Yes, but the American citizen must first apply for a fiancé/fiancee visa on the German citizen's behalf. This would be the I-129F petition. It would have to be approved before you can marry. This is if you plan to remain in the USA afterwards. For more info check out www.uscis.gov
The president of Germany is the most important citizen.