Naval Base Hollandia became an advance headquarter of the United States Seventh Fleet.

To receive all the needed supplies for the new Naval Base a pier for Merchant Navy ships was built and completed on June 9.

Beach landing ramps were built to support the loading and unloading of LST ships.

From Tanahmerah Bay some Seabees were sent 8 miles inland to Lake Sentani and built an advance naval headquarters.

The Naval Base Hollandia was closed in December 1945 and the facilities were sold to the Netherlands East Indies Government.