Passport and visa
A passport is a travel document which is issued by a country's government and certifies the identity and nationality of its holder for the purpose of international travel. The personal information on a passport must match the information on the bearer's ID card or household registration document. When information is must be true and accurate it ensures smoother travel.
Passports are also required for children and infants under two years old.
Some countries or regions require that a passport must be valid for at least 3-6 months beyond the period of stay.
A visa is a certificate (often a stamp marked on the applicant's passport) issued by a country's government that permits a foreign national to enter and exit or pass through their country. According to the principles of international law, a sovereign country has the right to decide whether to allow a foreign national to enter or exit their country. It also has the right to deny a visa application, issue a visa, or cancel an issued visa in accordance with its own domestic law.