The landings in the Munda area were the most important of the four; the initial phase of this part of the operation was the capture of Rendova, commanded by Admiral Turner. A total of 6,000 soldiers, sailors and marines of the US Army's 172nd Infantry Regiment, the 9th Marine Defense Battalion, and the Navy's 24th NCB landed at Rendova Harbor early on 30 June while Companies A and B of the 169th Infantry Regiment along with the New Zealand-trained and led commando unit of 130 South Pacific islanders took three strategic islets in the Blanche Channel opposite Munda. Rendova, Wickham Anchorage and Viru Harbor were developed into staging areas for the main event, the siege of Munda, while Segi Point was developed into an airfield. The small Japanese garrison on Rendova was quickly overwhelmed but the island was subjected to heavy attack by Japanese aircraft over the following days. The Marines on Rendova quickly built artillery emplacements from which they could shell Munda airfield and support the operations during July and August to capture of Munda airfield.