Meanwhile, on 4 November, two companies from the 2nd Marine Raider Battalion, commanded by Lieutenant Colonel Evans Carlson landed by boat at Aola Bay, east of Lunga Point. Carlson's raiders, along with troops from the U.S. Army's 147th Infantry Regiment, were to provide security for 500 Seabees as they attempted to construct an airfield at that location. Halsey, acting on a recommendation by Turner, had approved the Aola Bay airfield construction effort; however it was abandoned at the end of November because of unsuitable terrain.