Tonolei Harbor is located on the southern coast of Bougainville Island. Today located in the South Bougainville District, Autonomous Region of Bougainville (Bougainville Province) in Papua New Guinea (PNG). To the east is East Point at the southeastern tip of Bougainville Island. To the west is Pupukuna Point bordering Moisurui Bay. To the south is Sand Island and Tuarato Island. Wartime spellings include "Tonolai", "Tonalei" or "Tonelei".
During early 1942, occupied by the Japanese. Tonolei Harbor was used by Japanese warships and transports as an anchorage and supply area and was part of the Buin Anchorage. Between October 1942 until June 1944 this location was targeted by Allied bombers and fighters. Occupied by the Japanese until September 1945.
American missions against Tonolei Harbor
October 13, 1942 - June 4, 1944
Ran aground May 19, 1943
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August 4, 2018