Tarakan Island
The second prong, the Left Wing Unit, would land further south at Tandjoeng Batoe (Tanjung Batu) and make their way west to capture the Peningki-Karoengan gun batteries, before moving to Lingkas, passing by the 2nd Kure Special Landing Force at the airfield, to attack and capture the Gunung Cangkol and Djoeata oil fields and the Djoeata battery up north. Once these key points of Tarakan Island were cleared, the Army would turn over guard duty to the Navy, and the force would be assembled in Tarakan and its vicinity to prepare for the capture of Balikpapan.