I think that if your father was (and/or still is) a US citizen, then you are also a US citizen no matter where you were born. It should be rather easy to get an american passport in the US embassy or consulate in the phillipines for you. As for your mother, I believe that she has to apply for a US visa or "green card" based on her marriage to your father who was/is a US citizen, or thru your US citizenship if you are over 21 years old.
When you get citizenship through parents you need to apply for the citizenship certificate.For this the immigration Form N-600 should be filed. If your parents were US citizens but you were not born in the US, you are still legally a US citizen by birthright. You may be able to prove your citizenship and claim it by filing Form N600 (Application for Certificate of Citizenship).
He is a citizen of only the United States. At birth he was a citizen of the United States (thus a natural born citizen.) He was also entitled to British citizenship through his father which then became Kenyan citizenship when Kenya became independent, but as Kenya (unlike the U.S.) doesn't allow dual citizenship and because he didn't renounce his natural born U.S. citizenship, he lost his Kenyan citizenship at the age of 23. So he was technically a dual citizen until age 23 he has been purely an American citizen since.
This question is meaningless, it is missing punctuation. But the answer of the question "Would having only a birth certificate be absolute proof of citizenship, in the US, if your father was not a citizen and your mother did not meet the requirements for citizenship?" would be no. For example, Czech birth certificates have nothing to do with US citizenship.
What are the advantages of stress interview?
Why the story entitled origin of fair complexion and fair hair?
Ano ang kahulugan ng iskolarling pagpapahayag?
What is a classified data spill or negligent discharge of classified information?
Ano ang papel na ginagampanan ng mga impormasyong ito sa mapa o sa globo?