Although the EU has not been established for a long time, its covenant has undergone three changes, namely, the single resolution of 1987, the EU treaty of 1992 and the Amsterdam draft of 1997, but it has developed 15 member states. They are Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Italy, Luxembourg, the Netherlands, Portugal, Spain, Sweden and the United Kingdom. The establishment of the European Union is of great significance.

In essence, the EU is a closer alliance among European people, and some decisions it has made are in the interests of the people as much as possible. The purpose of the EU is to promote the economic and social progress of its member countries, make Europe as a whole appear on the world stage, and make its citizens have EU citizenship.

The European Union is gradually giving its citizens some new rights, such as freedom of movement and employment, which have been recognized by the International Court of Justice and the European judicial department, and have become its basic law, which has been written into agreements at various stages.

The EU has its own flag, songs and celebration day-May 9th.