The current geopolitical dynamics of Southeast Asia are characterized by increasing international tensions, especially due to rivalries between major powers such as the United States and China. This region, located at the crossroads of global trade routes, is an arena for strategic competition, influencing regional politics, economics and security. One of the key factors influencing this dynamic is territorial claims in the South China Sea. Several countries, including Vietnam, the Philippines and Malaysia, are involved in disputes with China over rights to maritime resources and shipping lanes. China, with its “Nine-Dash Line” policy, continues to expand its influence by building artificial islands and strengthening its military presence. This triggered a military response from the United States, which strengthened alliances with Southeast Asian countries and increased military training patrol activities. The existence of Asean is also important in dealing with this tension. Asean seeks to promote dialogue and cooperation among its members, but the internationalization of these issues creates challenges in unifying the views of member countries. ASEAN recovery initiatives, such as the Kuala Lumpur Declaration, focus on finding peaceful solutions to disputes in the South China Sea, although their effective impact remains questionable. In addition, increasing tensions also have an impact on economic relations. The trade war between the US and China is forcing Southeast Asian countries to navigate a complex situation. Some countries are seeking to strengthen trade ties with both countries, protecting their economic interests while maintaining sovereignty. Initiatives such as the Regional Comprehensive Economic Partnership (RCEP) demonstrate the drive to increase economic integration in the region, but also bring challenges in the face of Chinese dominance. Technological transformation also plays a role in geopolitical dynamics in Southeast Asia. Countries such as Singapore and Malaysia are investing in digital technology and artificial intelligence to strengthen their position in the global economy. However, tensions between the US and China on technology, including surveillance and cybersecurity, create an imperative for countries in the region to position themselves carefully. In the security sector, terrorism and radicalization remain a threat in Southeast Asia. Although international tensions dominate much of the discussion, local issues such as violent extremism need to be kept in mind. Intergovernmental intelligence and security cooperation is crucial in addressing this problem, with a focus on prevention rather than delayed reaction. Climate change is also an important aspect of Southeast Asian geopolitics, where countries are vulnerable to natural disasters. Resilience to climate change is an important agenda, requiring regional cooperation and international support to reduce the impacts that geopolitical tensions may have. This uncertainty in the international environment forces Southeast Asian countries to continue to adapt and innovate. Multilateral diplomacy, strengthening alliances, and innovation in foreign policy are important components in facing existing challenges. As time goes by, the geopolitical dynamics of Southeast Asia will continue to develop, influenced by changes in domestic and foreign policies.