The advance landings by the Japanese in southern Mindanao and the Sulu island has little to no impact on the overall campaign in the Philippines, but placed the Japanese in a good position for the planned invasion of Borneo and the Netherlands East Indies in early 1942. References Battles and operations of World War II involving the Philippines Invasions of the Philippines Davao 1941 in the Philippines 1941 in military history World War II invasions History of Sulu History of Davao City Amphibious operations of World War II December 1941 events