Naval Base Tarawa was a naval base built by the United States Navy in 1943 to support the World War II effort. The base was located on Tarawa atoll in the Gilbert Islands in the Central Pacific Ocean. The base was built as one of many advance bases in the island-hopping campaign towards the Empire of Japan. At Naval Base Tarawa the Navy built a seaport, seaplane base and two airbases. Construction started after the Battle of Tarawa ended November 23, 1943, part of Operation Galvanic.