Naval Battle of Guadalcanal General Headquarters—with approval from the Emperor—agreed on 31 December to the evacuation of all Japanese forces from the island and establishment of a new line of defense for the Solomons on New Georgia. Thus, the Naval Battle of Guadalcanal was the last major attempt by the Japanese to seize control of the seas around Guadalcanal or to retake the island. In contrast, the U.S. Navy was thereafter able to resupply the U.S. forces at Guadalcanal at will, including the delivery of two fresh divisions by late December 1942. The inability to neutralize Henderson Field doomed the Japanese effort to successfully
Malaita for the morning. Tropical cyclones are the only violent weather, but they can be destructive. Like the other islands in the archipelago, Malaita is near the Andesite line and thus forms part of the Pacific Ring of Fire. Earthquakes are common on the island, but there is little evidence of current volcanic activity. The main structural feature of Malaita is the central ridge which runs along the length of the island, with flanking ridges and a few outlying hills. There is a central hilly country, between Auki and the Kwai Harbor, which separates the central ridge into northern and southern