Multilateral cooperation is more attractive to weak countries and provides a means for small countries. After the cold war, the United States is at the peak of power and has the ability to distribute power systems. The EU is an important power center in the world, but it is relatively fragile. Politically, it needs American protection. In addition, the EU is an alliance of countries with serious internal differences. Therefore, the EU pursues multilateralism.

The US Congress is skeptical about multilateralism. Political culture: American exceptionalism is incompatible with the principle of universal consensus of multilateralism. When American sovereignty is eroded, it will carry out completely opposite unilateralism. Protecting cultural diversity and ethnic minorities by enacting institutional laws is an important goal of the European Union. Internal polity: The Constitution of the United States stipulates that the administrative legislation * * * stipulates its foreign policy, so the process of adopting international treaties by the United States is complicated and difficult, and the diplomatic rights enjoyed by the European cabinet can basically be obtained from the legislature. Council of Europe is multilateral, so it is multilateral. Multilateralism is now widely used in international politics and international thought, both in China and abroad, especially after the Cold War, which is much more frequently used than before. After the 9 1 1 incident, the American government implemented the well-known unilateralism, which was a criticism of American policy and related ideas were widely used. The connotation of this word is very wide, including the meaning of layer. At the lowest level, multilateralism undoubtedly contains the meaning of multilateral diplomacy, which we will talk about later. It is a long-standing form of diplomatic activities, even an ancient form of diplomacy.

However, people who only engage in multilateral diplomacy will not add the word "ism" after multilateralism. In addition to the meaning of multilateral diplomacy, it also contains a belief that discussing international politics and solving international problems through multilateral forms based on multilateral diplomacy is considered by some believers of multilateralism as a very important way to solve international problems peacefully and even promote the progress of the international community.