Citizenship may be changed by

Citizenship may be changed by renunciation, which means voluntarily giving up one's citizenship of a particular country. This can be done through a legal process, such as filling out a form or taking an oath. Citizenship cannot be changed by birth, as it is determined by the country in which one is born. Divorce, conviction, and employment do not typically have an effect on citizenship, although certain criminal convictions or employment in a foreign government may affect one's eligibility for citizenship in some countries.