Go to several countries at a time. Does every country have to sign a visa?

In principle, you should apply for several visas to visit several countries.

This is because whether each country allows immigrants is irreplaceable by other countries. Whether a person can be allowed to enter the country can only be decided by the relevant government agencies. The sign of its permission is the issuance of a visa.

Visa is very important for a person who wants to go abroad. It determines whether this person is allowed to leave the country, whether he is allowed to enter the destination country, and the duration of his stay. These will be shown on the visa issued by the destination country. The length of stay allowed depends on the purpose of the visit, from one day (such as transit) to permanent (such as immigration). Some are only allowed to be used once, such as transit and one-time travel. It is invalid if it is stamped with the entry and exit stamp. Others allow multiple uses, such as business, study, immigration (and many round-trip tours recently started in some countries) and so on.

An exception is that if there is a bilateral agreement between two countries (such as China and Sri Lanka) that allows visa exemption, visa requirements can be waived for departure and entry, and only valid air tickets are allowed. This method is actually a special visa, a package visa for all nationals of another country under an agreement, not a "visa-free".

Another exception is certain groups of countries, such as Schengen countries, which recognize visas issued by any member of the group under the Schengen Agreement. Therefore, if several countries you are going to are Schengen countries, as long as you apply for a visa to any of them, you don't need to go to other remaining countries within the validity period. In other words, the borders between Schengen countries are open.

Related knowledge:

Schengen: It is a small town with a population of less than 450 at the southeast end of Luxembourg. 1985, Germany, France, Belgium, the Netherlands and Luxembourg signed a treaty on the gradual cancellation of border inspection here, namely the Schengen Agreement. Countries that join the treaty are referred to as Schengen countries for short, and get Schengen visas.

Schengen countries: Austria, Belgium, Denmark, Finland, France, Germany, Iceland, Italy, Greece, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Hungary, Czech Republic, Slovakia, Slovenia, Poland, Estonia, Latvia, Lithuania, Malta, Switzerland, Liechtenstein and other countries.