Island located to the north of Peleliu. Connected by a wooden causeway over a sallow reef to Peleliu Island.

By September 1944, an estimated 950 Japanese Navy personell were based on the island. Assaulted by a small force of Marines from Peleliu on September 28, 1944 after they reached the northern end of Peleliu. Light enemy opposition was overcome the next day. They captured the airfield still under construction.

Ngesebus Airfield
Construction was begun by the Japanese. The airfield was in the final stages of construction when it was captured by American forces at the end of September 1944.