Countries that occupy only islands (such as Australia, Japan, the Philippines, Sri Lanka, and Iceland) may have no neighbors, although some island countries do share a border with a country (such as the United Kingdom and Ireland, Haiti and the Dominican Republic, and Papua New Guinea and Indonesia).

Countries that occupy only islands (such as Australia, Japan, the Philippines, Sri Lanka, and Iceland) may have no neighbors, although some island countries do share a border with a country (such as the United Kingdom and Ireland, Haiti and the Dominican Republic, and Papua New Guinea and Indonesia).