Ok so a native born American cannot lose his citizenship?
As noted in my earlier post, the government can
revoke the U.S. citizenship of a
naturalized citizen if, for example, it was fraudulently obtained. Any citizen, native-born or naturalized, can
lose his citizenship "by voluntarily performing" certain specified acts "with the intention of relinquishing United States nationality." These include being naturalized by, making a formal declaration of allegiance to, or serving in the armed forces of another country; renouncing U.S. citizenship; and participating in military action against the United States. Note that an action that can result in loss of citizenship must be undertaken voluntarily and not under duress. [
8 USC §1481.]