The article discusses Japan's perspective on security in the East and South China Seas. Japan is concerned about China's assertiveness in the East China Sea, leading to increased operations by the Japan Coast Guard and efforts to enhance defense capabilities by the Japan Self-Defense Forces. Japan sees the South China Sea dispute as a global issue affecting peace in the Indo-Pacific region. Japan is working with ASEAN countries like Vietnam and the Philippines to address China's assertiveness through cooperation and capacity-building assistance.