 Complete the following phrase:  During late 1943 and early 1944 Allied forces in the South West Pacific Area undertook Operation Cartwheel. This was a major offensive which aimed to isolate the main Japanese base in the area at Rabaul on the north-eastern tip of New Britain, and capture airstrips and anchorages which were needed to support a subsequent advance towards the Philippines. During December 1943 and January 1944 United States Army and United States Marine Corps units successfully landed in western New Britain at Arawe and 