If you were born in the US to a foreign parent before October 1953 and moved back to that parent's country, and remained there three years past the age of 22, y

If you were born in the US to a foreign parent before October 1953 and moved back to that parent's country, and remained there three years past the age of 22, your US citizenship lapsed. That provision of the Immigration and Nationality Act was repealed effective October 1978. Many retirees can benefit from this. Children born in the US to diplomats, and possibly foreign military on posting, do NOT receive US citizenship on birth. There are a number of provisions in the Immigration and Nationality Act where US citizenship can be lost. Elective office and becoming an officer in a foreign military (think reserves) can lose US citizenship. A careful reading of current and repealed provisions of the INA will show ways to automatically lose US citizenship.