Bougainville is the largest island of the PNG chain of islands. It is geographically part of the Solomon Islands archipelago and used to be known as the Republic of North Solomons. It has a population of around 250,000 people. Bougainvilleans started a fight to achieve their independence in the 1960s. This was a decade before Papua New Guinea was granted independence in 1975. Bougainville was declared part of PNG in 1976. This sparked the Bougainville Civil War between 1988–1998. Over 20,000 people lost their lives in that conflict. The Prime Minister of PNG said: "I ask for some time for the people of PNG to absorb and process this result." He said his government was committed to adhering to the poll's result.