Casa wrote:So you hold an American passport?

If so, you can have dual US/UK citizenship without a problem. You had only mentioned a Green Card.

No I don't. I have an American Green card and I am going to apply for British citizenship.

Are you aware that a Green Card can be withdrawn if you remain outside of the US for more than 180 days in a 12 month period. Equally if you are outside of the UK for more than 90 days in the 12 months period (or 180 days during the 5 year qualifying period) prior to applying for BC the application...

Thank you for your reply.

I have both US Green card and British permanent residency. Now I want to apply for British citizenship. I am not looking for an advantage, because I already have all the requirements. My worry is how becoming a British citizen could negatively affect my US Green card.

I am a middle eastern who have been living in the UK for a while, at the same time my relatives applied for my Green Card. The Green Card was granted this year also because of my residency in the UK I am entitle to apply for British citizenship. Now my question is: If I apply for the British citizen...