I te raumati o te tau 1943, i tautokohia e ngā wāhanga o te 9th, 10th, me te 11th Defense Battalions te XIV Corps o te Army i te pakanga o Solomon Islands
He aha? I te tau 1944 i awhina etahi atu roopu ki te whakakore i nga moutere ki te raki, tae atu ki Bougainville. I te mutunga o te tau 1943, ka eke te ope a te Defence Battalions ki te kaha nui 26,685 Marines puta noa i nga Battalions 19. I te mea kua heke te whakawehi ki nga turanga moana matatau i muri mai i te pakanga, ka whakakorehia nga Battalion Parenga, ka whakahoutia ranei hei battalion anti-aircraft.