who won the battle?
Australia
Battle of Kaiapit
he Australian victory at Kaiapit enabled the Australian 7th Division to be flown in to the upper Markham Valley.
who fought battle of kaiapit? Between Australian and Japanese forces
wiki:22951261
Battle of Kaiapit [SEP] Introduction
Unaware that a much larger Japanese force was also headed for Kaiapit, the company attacked the village on 19 September to secure the area so that it could be developed into an airfield. The company then held it against a strong counter-attack. During two days of fighting the Australians defeated a larger Japanese force while suffering relatively few losses. The Australian victory at Kaiapit enabled the Australian 7th Division to be flown in to the upper Markham Valley. It accomplished the 7th Division's primary mission, for the Japanese could no longer threaten Lae or Nadzab, where a major airbase was being developed.