The role of diplomatic relations in building global security is critical in an increasingly connected world. Diplomatic relations refer to formal interactions between countries, including negotiations, treaties, and dialogue to maintain peace. By focusing on global security, several important aspects can be identified. Firstly, preventive diplomacy plays a crucial role in preventing conflict. Through open dialogue, countries can detect tensions and facilitate the development of peaceful conflict resolution. For example, international organizations such as the UN often function as mediators in resolving emerging dissatisfaction. Furthermore, multilateral diplomacy provides a platform for countries to collaborate to face common challenges, such as terrorism, climate change and pandemics. Forums such as the G20 and ASEAN encourage cooperation and commitment between countries to create effective solutions to existing global problems. Strengthening alliance networks is also an integral element of diplomatic relations. Strong alliances, such as NATO, create collective security guarantees. Member states are committed to mutual protection, thereby minimizing the possibility of external aggression. In this context, signing a defense agreement, such as a mutual defense agreement, is a strategic step. Another aspect that is no less important is economic diplomacy. Strong economic ties between countries can reduce geopolitical tensions. When countries depend on each other for trade, rivalry can be reduced. Balanced and mutually beneficial economic relations minimize the risk of armed conflict. The role of intelligence is also crucial in diplomatic relations and global security. Intelligence cooperation between countries can provide important information about potential threats. By sharing data and analysis, countries can anticipate and respond before problems escalate into crises. In addition, in the digital era, cyber diplomacy is becoming increasingly relevant. Countries must work together to protect critical infrastructure from the threat of destructive cyberattacks. International agreements, such as conventions on cybercrime, are needed to establish norms and standards in cyberspace. Education and cultural exchange are also important components of diplomatic relations. Facilitating student exchanges and cultural programs can create better understanding between countries. Intercultural understanding often provides a strong foundation for stable diplomatic relations. Strengthening international institutions such as the International Court of Justice to function as a channel for resolving disputes peacefully. These institutions provide legal certainty and justice, which in turn minimizes the risk of military conflict. With the growth of populism and geopolitical challenges, diplomacy is now faced with greater complexity. Creative and innovative efforts in diplomatic relations will be very necessary to support global security. Countries need to adapt and respond to the ever-changing dynamics in the international arena. Partnerships between developing and developed countries are also important in building global security. Support through development assistance and trade agreements can create stability. Mutually beneficial cooperation can reduce poverty levels and improve the quality of life, which are driving factors for conflict. Global security cannot be separated from environmental issues. Climate change resilience must be part of foreign policy. Green diplomacy, which includes cooperation on environmental protection, can help create long-term sustainability and stability. Overall, diplomatic relations are a powerful means of establishing and maintaining global security. Through dialogue, cooperation and shared understanding, global challenges can be faced more effectively.