A lokacin rani na 1943, abubuwa na 9th, 10th, da kuma 11th Defense Battalions sun goyi bayan rundunar soja ta XIV a tsakiyar
Yaƙin neman zaɓe na Solomons. Sauran batutuwa sun taimaka wajen share tsibirin arewacin, ciki har da Bougainville, kuma a cikin bazara na 1944, an kama su duka.