During World War II the islands were held by the Japanese until 25–27 October 1943, when the islands were invaded via amphibious assault by units of the New Zealand 8th Brigade. Following the invasion, an airstrip was built on the flatter Stirling Island by the USN 87th Construction battalion. This airfield was then used to support a campaign to neutralize Japanese air power at Rabaul. Stirling airfield is still in use today by Solomon Airlines.