<h1>Indonesia and Japan Boost Economic and Defense Cooperation Amid Regional Tensions in South China Sea.</h1> Indonesia and Japan have committed to strengthening their economic and defense ties amid rising regional tensions, particularly concerning China's assertiveness in the South China Sea. During a visit by the Japanese prime minister to Indonesia, both nations agreed to enhance cooperation in defense technology, maritime security, and economic development. Japan pledged support for Indonesia's self-sufficiency goals and promised a loan for infrastructure projects, including a new port. Both countries aim to maintain regional stability and promote a rules-based international system. Indonesia remains non-aligned but is concerned about escalating security tensions in the region.