The role of diplomatic relations in creating and maintaining global peace is very crucial. Diplomacy is a tool that countries use to interact, resolve conflicts, and build cooperation. Through this route, countries can prevent conflicts that have the potential to damage international stability. One of the main functions of diplomatic relations is as a mediator in conflict situations. When two countries experience tension, diplomats can act as intermediaries. By establishing dialogue and negotiation, diplomats try to resolve problems without using violence. A clear example is the role played by the UN in resolving conflicts in various parts of the world, where diplomacy is often the first step before military intervention is carried out. Diplomatic relations also include the preparation of bilateral and multilateral agreements. These agreements often cover economic, social and security aspects. For example, free trade agreements can create economic interdependence between countries, thereby reducing the possibility of conflict. Thus, diplomacy not only operates in the political field but also in the economic and social fields, creating a network of mutually beneficial cooperation. In addition, diplomatic relations strengthen intercultural relations. Through cultural exchange activities, such as education and arts programs, countries can understand each other’s perspectives. This helps reduce prejudice and stereotypes, which often trigger conflict. This better understanding is an important step in creating tolerance and coexistence at the global level. The role of international organizations in diplomatic relations is also noteworthy. Organizations such as the United Nations (UN) and the European Union play an important role in establishing diplomatic cooperation aimed at maintaining peace. Through these forums, countries have a platform to voice their interests, collaborate in dealing with global issues, and develop policies that support world security. Public diplomacy is another aspect that cannot be ignored. Countries use public diplomacy to build a positive image and build stronger relationships with the international community. Through social media, communications campaigns, and community meetings, countries can share their values and seek support for peace causes. Understanding public opinion in other countries also helps strengthen cooperation and reduce tensions. The expansion of diplomatic networks also contributes to global stability. Countries that have many diplomatic relations tend to be more stable, because of diplomats’ access to solving problems. When countries collaborate, global challenges such as climate change and terrorism can be tackled collectively. International cooperation is important, especially in the era of globalization, where issues are cross-border. In a security context, diplomatic relations can bridge the process of decontaminating weapons, overseeing weapons monitoring, and enforcing international agreements such as the Non-Proliferation Treaty (NPT). Through this cooperation, countries can ensure that steps are taken to prevent the spread of weapons of mass destruction, which pose a real threat to world peace. Through a comprehensive approach to diplomatic relations, countries can create a framework that supports global peace. When all these aspects of cooperation are combined, they form the basis for the long-term security and stability in the world, which all nations aspire to.