no you won't, you will have a Dual Citizenship which ok, but you can't swear to both countries
No!
Yes, an American citizen doesnt lose that citizenship when another citizenship is gained.
A person does not lose his or her natural born citizenship by marrying a citizen of another country.
Look - up U.S. Immigration & Citizenship Your Complete Guide
An American can lose citizenship for varying reasons. Some of these reasons include being convicted for treason, voluntarily renouncing U.S. citizenship and obtaining naturalization in a foreign state.
He will become a dual citizen of the uK and the US.
An Indonesian citizen, he was Obama's stepfather for a few years. This had no affect on Obama's American citizenship, since you can't lose your citizenship as a child.
Never.
Not unless you renounce your Canadian citizenship voluntarily.
Typically the child will have dual citizenship until they reach the age of 18, at which point they have to determine which citizenship they were going to go with.
You would have to commit a terrible crime.
No you do not.The only person that doesn't have citezenship in America is the person from overseas.Another answer:Marriage to a foreign citizen does not affect one's own citizenship. If the new spouse wishes to obtain US citizenship, the laws of the home country determine whether or not that individual either gets dual citizenship or loses the original citizenship. For example, if a bride from New Zealand marries an American, she may gain US citizenship and retain her New Zealand citizenship. If a Chinese bride seeks US citizenship, though, China will not permit her to retain her Chinese citizenship.