Strategy for Securing Indonesia's Border Sea Area in the Sulu Sea Through Trilateral Maritime Patrol Indomalphi

The Sulu Sea as well as the Sulawesi Sea, are semi-closed sea areas, these seas are targets of illegal maritime activities. The Sulu Sea and Sulawesi Sea, being hotspots for several serious maritime crimes such as terrorism, kidnapping, piracy, and other transnational crime problems require joint operations through INDOMALPHI as a common platform in dealing with security threats in the region. The purpose of this study is to analyze the security strategy of the Indonesian Border Sea area in the Sulu Sea through the Trilateral Maritime Patrol Indomalphi. The method used is qualitative research that is descriptive. Data collection was obtained by literature study through articles, journals and reports related to the Sulu sea area and threats arising in the Indonesian border area. After that, the author discussed the Strategy for Securing Indonesia's Border Sea Area in the Sulu Sea through the Trilateral Maritime Patrol Indomalphi. Furthermore, the author describes the steps that can be taken by the Indonesian government. The results show that in securing Indonesia's border sea area in the Sulu Sea, INDOMALPHI's trilateral maritime patrol strategy has played an important role. This collaboration between Indonesia, Malaysia, and the Philippines through this trilateral has succeeded in increasing security and stability in the region. In its implementation, INDOMALPHI's trilateral maritime patrol has faced several challenges. One is coordination between three countries that have different policies and procedures. In addition, other challenges are the vast and complex Sulu Sea area, as well as the presence of armed groups that are still active in the region. To improve the effectiveness of Indonesia's border sea area security strategy in the Sulu Sea through INDOMALPHI's trilateral maritime patrol, here are some suggestions that can be considered: Strengthening cooperation, Capacity building, Regional cooperation development, Community empowerment