3rd Battalion, 9th U.S. Marines battle Japanese infantry from the 54th Infantry Regiment, November 7 or 8, 1943 on Bougainville island during the Battle of the Koromokina Lagoon.

Source: http://www.ibiblio.org/hyperwar/USMC/USMC-M-NSols/USMC-M-NSol-2.html (page 43). Official USMC photo.

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