Japan sought sea control to cover an army attempt to retake Henderson Field and Guadalcanal. Control of the island chain could threaten Allied supplies and movement toward Australia and complicate cooperation between Nimitz's and MacArthur's command areas. Exploiting that position required ships, aircraft, and supporting forces that Japan struggled to provide. For the Americans, the islands also offered a route toward the major Japanese base at Rabaul. Japan was operating at the end of an exposed supply line that American submarines repeatedly attacked. Sending carriers south could contest American naval support, but it did not by itself solve the shortage of transport and sustained support ashore.
Chapter · 9:01-12:00
Why Guadalcanal drew the carrier forces in
Japan sought naval cover for an attempt to retake Henderson Field and Guadalcanal, where control of the Solomons could threaten Allied movement and supply toward Australia.