Dual nationality, also known as dual citizenship, occurs when a person is legally recognized as a citizen of two different countries simultaneously. This status allows individuals to enjoy the rights and privileges of both nations, such as voting, working, and residing in either country without restrictions. However, dual nationality can also come with responsibilities, such as paying taxes in both countries or adhering to the laws of each nation. Some countries, like the United States and Canada, permit dual citizenship, while others may require individuals to renounce their original citizenship upon acquiring a new one.