seaborne attacks on the Gilbert Islands (Kiribati) that were occupied by Japanese forces. The islanders assisted the American forces to build airfields on Funafuti, Nanumea and Nukufetau and to unload supplies from ships. On Funafuti, the islanders shifted to the smaller islets so as to allow the American forces to build the airfield and to build naval bases and port facilities on Fongafale. A Naval Construction Battalion (Seabees) built a seaplane ramp on the lagoon side of Fongafale islet, for seaplane operations by both short- and long-range seaplanes, and a compacted coral runway was also constructed on Fongafale, with runways also constructed to create Nanumea Airfield and Nukufetau Airfield. USN Patrol Torpedo Boats (PTs) and seaplanes were based at Naval Base Funafuti from 2 November 1942 to 11 May 1944. The atolls of Tuvalu acted as staging posts during the preparation for the Battle of Tarawa and the Battle of Makin that commenced on 20 November 1943, which were part of the implementation of "Operation Galvanic". After the war, the military airfield on Funafuti was developed into Funafuti International Airport. Post-World War II – transition to independence The formation of the United Nations after World War II resulted in the United Nations Special Committee on Decolonization committing to a process of decolonisation; as a consequence, the British colonies in the Pacific started on a path to self-determination. In 1974, the ministerial government was introduced to the Gilbert and Ellice Islands Colony through a change to the Constitution. In that year a general election was held, and a referendum was held in 1974 to determine whether the Gilbert Islands and Ellice Islands should each have their own administration. As a consequence of the referendum, separation occurred in two stages. The Tuvaluan Order 1975, which took effect on 1 October 1975, recognised Tuvalu as a separate British dependency with its own government. The second stage occurred on 1 January 1976, when separate administrations were created out of the civil service of the Gilbert and Ellice Islands Colony. In 1976, Tuvalu adopted the Tuvaluan dollar, whose currency circulates alongside the Australian dollar, which was previously adopted in 1966. Elections to the House of Assembly of the British Colony of Tuvalu were held on 27 August 1977, with Toaripi Lauti being appointed Chief Minister in the House of Assembly of the Colony of Tuvalu on 1 October 1977. The House of Assembly was dissolved