Japan, with its heavy reliance on energy imports, is at risk of national security threats due to geo-political instability. The article highlights the opportunity for Japan to rapidly transition to 60-70% clean energy by 2035 by addressing challenges in grid connections and offshore wind power. Recommendations include upgrading national grids, reforming regulations, and shifting industries to regions with clean energy resources. Japan's leadership in reducing emissions, issuing climate transition bonds, and advocating for green ammonia showcases its commitment to global sustainability. The country can assist ASEAN nations in transitioning to green economies and preparing for climate change impacts through its technology and expertise in disaster preparedness.