Negotiations on the nuclear threat and denuclearization of the Korean Peninsula have recently shaped the agenda of North Korea's international relations system, thus influencing policy patterns North Korea's foreign country, the DPRK. This issue has acquired such priority that it led to the implementation of the 6PT experiment, thus proving to be at the center of the debate on stability and security in the North-East Asia region. Realism theory provides reasons why North Korea has positioned the nuclear weapons debate at the center of its policy. One of the fundamental assumptions of Realism is in fact that each State, inserted in an international order characterized by a condition of antagonism, tries to pursue its own national interest. Beyond that, the overriding national interest is defined in terms of national security and survival. Furthermore, according to the same theory, relations between states mainly derive from their level of power, which is fundamentally constituted by their military and economic capacity, and in the pursuit of national security states strive to obtain as many resources as possible. The theoretical model therefore explains why the nuclear issue has come to be identified with a security issue, in the sense that North Korea's main concern is to ensure its survival, its efforts are primarily aimed at achieving that objective and the only means to pursue it. consists in posing the nuclear threat. North Korea finds itself stuck in economic and, to some extent, diplomatic isolation; even if the financial sanctions that led to the critical conditions just mentioned were caused by the government's inflexible, aggressive and anti-democratic behavior, the regime has no other card... reinforce the perception of surrounding states that they are dealing with a country characterized by a high level of decisiveness and risk-taking attitude, despite its inability to compete with other major military powers. In conclusion, Realism is able to explain the results, real and hypothetical, of NK policies, since its common assumption corresponds to the centrality of the nuclear issue in the country's agenda. In addition to this, neoclassical realism also provides a valuable explanation for some of the nation's most relevant patterns of foreign policy behavior. Works Cited Kim, Yongho and Yi, Yurim “Security Dilemmas and Signaling during the North Korean Nuclear Standoff,” Asian Perspective, Vol. . 29, no. 3, 2005, pp. 73-97Ashley, Richard K. “Political Realism and the Human Interests,” International Studies Quarterly, no. 25, 1981, pp. 204-36