the main Japanese bases in SWPA and the main Allied bases in SOPAC. However, MacArthur's Operation Cartwheel, which gave full operational command of naval and amphibious forces to SOPAC's Admiral William Halsey in the Solomons while MacArthur strategically directed the whole operation, was a resounding success due to the rapport and great personal relationship between MacArthur and Halsey. When Halsey operated in the Solomon Islands that was west of 159° east longitude he reported to MacArthur. When he operated east of 159° east longitude he reported to Nimitz. The middle of Santa Isabel Island is where 159° east longitude runs through. Sub-components The Joint Chiefs further divided the Pacific Ocean Areas into the North, Central and South Pacific Areas. Nimitz designated subordinate commanders for the North and South Pacific Areas (NORPAC and SOPAC) but retained the Central Pacific Area (CENPAC), including the Army's Hawaiian Department, under his direct command. During the 1942 Aleutian Islands campaign Rear Admiral Robert A. Theobald commanded Task Force 8 afloat. Theobald as Commander North Pacific Force (ComNorPac) reported to Admiral Nimitz in Hawaii. Task Force 8 consisted of five cruisers, thirteen destroyers, three tankers, six submarines, as well as naval aviation elements of Fleet Air Wing Four. From 1942-1943, three Army infantry divisions (23rd/"Americal", 25th, 27th) and two Marine divisions (1st, 2nd) fought in the POA (the 1st and 3rd Marine Divisions also fought in the SWPA in 1943). From 1944-1945, five Army infantry divisions (7th, 27th, 77th, 81st, 96th) and six Marine divisions (1st, 2nd, 3rd, 4th, 5th, 6th) served in the POA. An additional 15 Army divisions fought in the SWPA during this time. Among allied land force formations was the 3rd New Zealand Division, which fought in the Solomon Islands campaign during 1943-44. U.S. Army Air Forces (USAAF) operated in the POA under the Seventh, Thirteenth, and Twentieth Air Forces at various times. On 10 March 1944, the Department of War approved the activation of an additional AAF headquarters for the Pacific Ocean Areas. To head this new command the Air Staff in Washington DC had decided as early as 16 April upon Lt. Gen. Millard F. Harmon, who, as commander of U.S. Army Forces, South Pacific Area (USAFISPA) had had long experience in the Pacific. By May the War Department proposed that Lt. Gen. Robert C. Richardson Jr., commanding U.S. Army Forces Central Pacific Area, be named Commanding General of U.S.