What is the purpose of a visa and passport for international travel?

A passport is considered a very good proof of your identity and nationality. The visa is issued by the country you are entering allowing you to stay in the country for a specific purpose and time ie. student visa, travel visa, work visa etc.  more

Passport - International ID, Visa -Clearance for you to enter/exit certain country  more

Passport- A passport is a travel document issued by a national government that usually identifies the bearer as a national of the issuing state and requests that the bearer be permitted to enter and pass through other countries. Passports are connected with the right of legal protection abroad and the right to enter one's country of nationality. Passports usually contain the holder's photograph, signature, date of birth, nationality, and sometimes other means of individual identification. ------------------- VISA A visa (short for the Latin carta visa, lit.  more