It can not be denied that national security is advantageous in each country's political, economic and military agenda. Therefore, the state has the most important responsibility in the context of its own national and international security. Regardless of how the state protects itself and its citizens, it must comply with international systems. In this sense, the state tends to follow a specific model in international relations. Generally, in the context of Western society, especially in the United States as a landmark model of Western countries, the state tends to be realistic from the viewpoint of national security.
The main difference between realism and liberalism in interpreting this situation is that the realist country is paying attention to the security threat and even the balance of security threats, It has not been asserted. What really differs between the two theoretical families is the cause of the security threat itself that the realist is attributed to a specific power structure (national balance), and the liberal is returning it. There is an extreme contradiction between ideology, institution, and material preference. (As far as they are concerned, institutionists attributed them to a cognitive theorist's particular belief about the uncertainty and the failure of the commitment strategy, and the effectiveness or appropriateness of a particular policy response.)
Note 59: If the realism theory ignores the importance of a comprehensive definition of national security beyond narrow military concerns, or the legacy of the national security policy of Asian countries left by the Chinese-centered global system, Their analysis may be wrong. . It dates back to the 1990s. Note 63: In politics of many European countries including Germany, the re-emergence of malicious foreign foreign nationalism reflects the erosion of the right wing in politics (in Italy it is endangered). Contrary to the development of multicultural systems in the United States, it is not formal, but the trends that have the potential to increase social diversity in the past two decades have been revealed. With the conclusion of the Cold War, the expansion of the collective identity of Europe accelerated. In the 1990s, Christian democracy lost control of the right wing political forces.