[Jim O]

Clearing Bougainville was a slow, arduous process. There was never a pullout.

There are several online histories that you can read. One is at Third Marine Division Association - History Bougainville. There is also some info at Pacific, British, Fleet, Kula, Gulf, Empress, Augusta, Bay, Vella Lavella, Leyte, Sibuyan, Sea, Samar, Engano, Cape, Lingayen, Leyte, Luzon, Iwo Jima, Balikpapan, East, China, Okinawa.

An entire book is devoted to the subject:



Another book to consider is:



I hope that this helps.