The political status of the Cook Islands and Niue is formally defined as being states in free association within the Realm of New Zealand, which is made up of the Cook Islands, Niue, and New Zealand and its territories, Tokelau and the Ross Dependency. The Cook Islands and Niue do not have full constitutional independence from New Zealand but act as independent countries. Some countries have recognised them as sovereign entities and established diplomatic relations. However, New Zealand may carry out defence and foreign affairs on behalf of the two associated states when requested.