The term "country of citizenship" refers to the nation where an individual holds legal membership or allegiance. This status grants the person specific rights and responsibilities, such as the right to vote, work, and reside in that country. Citizenship is typically acquired by birth, descent, or naturalization. Citizenship can also affect an individual's ability to travel, as it often determines the validity of a passport. For example, a U.S. citizen can travel to many countries without a visa, while a citizen of another country may face different travel restrictions.