Gilbert and Ellice Islands Ellice Islands", which replaced laws created during the BWTP. The Phoenix Islands were added to the colony in 1937. Banaba Island (Ocean Island) remained the headquarters of the colony until the British evacuation in 1942 during the Pacific War when Ocean Island and the Gilbert Islands were occupied by the Japanese. The United States forces landed in Funafuti on 2 October 1942 and on Nanumea and Nukufetau in August 1943 and constructed an airfield on each island and other bases. The atolls of Tuvalu acted as a staging post during the preparation for the Battle of Tarawa and the Battle
Pacific Ocean most of the islands in the world. There are about 25,000 islands in the Pacific Ocean. The islands entirely within the Pacific Ocean can be divided into three main groups known as Micronesia, Melanesia and Polynesia. Micronesia, which lies north of the equator and west of the International Date Line, includes the Mariana Islands in the northwest, the Caroline Islands in the center, the Marshall Islands to the west and the islands of Kiribati in the southeast. Melanesia, to the southwest, includes New Guinea, the world's second largest island after Greenland and by far the largest of the Pacific islands.