 Following the airstrikes, landings were made at several locations targeting airfields and other important points in the area.In addition to the landings at Miri, the Japanese forces made landings at Seria, Kuching, Jesselton and Sandakan between 15 December 1941 and 19 January 1942.After these main objectives in Borneo were completed, the Japanese forces planned a three-pronged assault southward using three forces named Eastern Force, Center Force and Western Force.