What are two notable ethnic conflicts on mineral-rich islands in Oceania?

Two notable ethnic conflicts on mineral-rich islands in Oceania are:

- The conflict in Bougainville, an autonomous region of Papua New Guinea, which has a history of ethnic tensions between the indigenous landowners and the multinational corporations that have been mining copper and gold in the region.

- The conflict in New Caledonia, a French overseas territory, where there have been long-standing tensions between the indigenous Kanak people and the European settlers, particularly over control of the island's nickel resources.