Small island located at roughly the center of Truk Lagoon. Udot Island is to the south-east, and Tol Island to the south-west.

The only strategic target on the island were three (RDF) Radio Direction Finder station near the center of the island, for aircraft to use flying to the area. This station was manned by 68 men of the 4th Communications Unit. Also. 4th Civilian Engineer Department based 227 men and 40 Army personnel. References: WWII Wrecks of Truk Lagoon, page 80.