if a person is born on a US military base in Another country are they considered US citizens?

Yes, as the military base is considered to be american soil. Additionally, a child of US citizens, can be born anywhere in the world and is still considered to be a native born US citizen. The birth would have to be registered with the US Consulate in that country and the appropriate documentation issued (FS form 240, Consular report of Birth Abroad) and the child would be eligible to hold any elective office in the US, up to and including, the Presidency.

Hopefully this answers your question.

Yes and it does not even have to be on base. Even if only one parent is American you apply for a certificate of birth abroad. You get an American birth certificate that is just as good as if you were born in Ohio.

You are considered a natural born citizen.

I was born overseas on a base so I have that. But I also recieved a birth certificate from the country I was born in.

Yes, children born during foreign postings on bases are considered American citizens. Anyway, if both parents are citizens, the child auto gets citizenship [I believe].

Yes. You're an american citizen no matter where you're born if one or both of your parents are citizens or if you're born in America or on an embassy. I am a dual citizen because my father was an american, but my mother was filipino and I was born at a filipino hospital.

Yes, john McCain is a US citizen. The case/issue even went to the supreme court.

Including children of missionairies, military personnel, and diplomats or just Americans living abroad. They should register with the US embassy/consulate.

yes. US Military bases are treated like Embassies: sovereign US soil.

Yes they are.