Thirty years ago today, on March 26, 1995 (February 26, 1995 in the lunar calendar), the EU's Schengen Agreement, which abolished border controls, officially came into effect. On March 26, 1995, the Schengen Agreement signed by some EU countries in 1985 to eliminate border controls officially came into effect. France, Germany, Belgium, the Netherlands, Luxembourg, Spain and Portugal took the lead in implementing free movement of people. According to this agreement, citizens of Germany, France, Spain, Portugal, the Netherlands, Belgium and Luxembourg will be able to travel freely within the seven countries without having to present ID cards at the border. Foreigners can enjoy the same treatment as long as they obtain a visa from any of the seven countries. The Schengen Agreement was signed on June 14, 1985 by France, Germany, the Netherlands, Belgium and Luxembourg in the small town of Schengen in Luxembourg, hence the name Schengen Agreement. The main contents of the agreement include: no longer border inspections of citizens between signatories to the agreement; once foreigners are allowed to enter the "Schengen Territory", they can move freely through the territory of signatories to the agreement; establishing a system for police cooperation and mutual legal assistance, establishing a Schengen computer system, and establishing a shared archive of various illegal activists. Currently, 9 of the 15 member states of the European Union have joined this agreement. In June 1990, Schengen member states signed the Schengen Convention with more than 100 articles, which made specific provisions on police, customs and judicial cooperation after the territory of the nine countries was opened. The Schengen Agreement was originally planned to be implemented from the summer of 1992. The French Senate established the Schengen Agreement Supervisory Committee in June 1991. It conducted separate investigations into the preparations of the Netherlands, Italy, Spain, Germany and Belgium for the implementation of the Schengen Agreement. It was found that these countries were not sufficiently prepared in terms of laws, regulations and police coordination. In addition, it also found that there were many inconsiderate aspects in the Schengen Convention. Therefore, the Committee believes that it was premature to implement the Schengen Agreement in 1992 and recommends that the implementation date be postponed until all preparations are in place before implementation. At present, the police computer systems of Germany, France, Spain, Portugal, the Netherlands, Belgium and Rwanda have been connected to the Internet, and a computer center has been set up in Strasbourg, France. The list of all prisoners to be pursued or persons refused entry has been entered into the computer, which can be consulted by all border guard posts. After opening internal borders, the seven countries will strengthen the management of external borders to prevent people from smuggling. Italy and Greece will also cancel border inspections after police computer networking is completed. Negotiations are underway for Austria and Denmark to join the agreement. The implementation of the Schengen Agreement has created conditions for the EU to achieve integration.