For others, it is limited to Melanesia, Micronesia, and Polynesia. Indonesia and the Philippines are usually reckoned a half of Asia. Papua New Guinea, which shares a protracted land boundary with Indonesia, is more likely to be grouped with Oceania. There are no less than two countries, Russia and Turkey, which might be unambiguously divided between Asia and Europe. Georgia, in the Caucasus, has affinities to both Europe and Asia.