南西方面艦隊
After February 1945, the headquarters of the Southwest Area Fleet was isolated in the Philippines, and the IJN 10th Area Fleet was created in Singapore to take over operational command of its surviving forces, with the exception of the 3rd Southern Expeditionary Fleet, which was also trapped in the Philippines. Through fierce fighting during the American re-occupation of the Philippines, especially in Manila, Cebu and Mindanao, the surviving elements of the Southwest Area Fleet and the 3rd Southern Expeditionary Fleet were largely annihilated by the end of May 1945.