Diplomacy plays a crucial role in building good international relations between governments and foreign communities. Through diplomacy, countries can manage differences, establish cooperation, and overcome conflicts that may arise due to different interests. The diplomacy process involves negotiation, communication, and strategic messaging to achieve common goals. The first aspect of diplomacy is negotiation. In this context, negotiations are not just meetings between government officials, but also include dialogue with various stakeholders, including international organizations and the private sector. This process requires communication skills and the ability to understand other people’s perspectives. Effective diplomacy demands seeking mutually beneficial solutions, helping to defuse possible international tensions. Furthermore, diplomacy also functions as a tool for building trust. With bilateral or multilateral cooperation, countries can show their commitment to international norms and rules. Building this trust is important in order to create stability in a particular area. Through cultural and educational exchanges, diplomacy can increase understanding between nations, which facilitates further cooperation in the economic, social and security fields. The role of information technology in modern diplomacy cannot be ignored. Digital diplomacy allows countries to communicate more quickly and efficiently. With social media and other digital platforms, countries can reach a wider audience, speed up the dissemination of information, and influence global public opinion. This gives new strength to diplomacy in order to improve the country’s image in international eyes. On the other hand, preventive diplomacy becomes increasingly important in a complex global context. Preventive diplomacy aims to identify and resolve problems before they escalate into armed conflict. These efforts involve engaging countries in resolving existing conflicts, facilitating dialogue, and offering mediation when necessary. By emphasizing peaceful solutions, diplomacy can strengthen collective security and prevent war. Cooperation on global issues such as climate change and public health also reflects the importance of diplomacy. Countries around the world are increasingly realizing that these challenges cannot be solved by national action alone. Diplomacy serves as an important means for building global consensus and implementing effective strategies in facing these challenges. Thus, the role of diplomacy in building international relations is very vital. Through effective negotiations, trust building, and innovative responses to global challenges, diplomacy forms the basis for mutually beneficial cooperation. Efforts made in the context of diplomacy not only have an impact on formal relations between governments but also enrich social, economic and cultural interactions between countries. Moreover, in the current era of globalization, the position of diplomacy as a tool for resolving conflicts and liaising between countries has never been more complex.