Why does Cook Islands want its own passport? Why has New Zealand rejected it?

The Cook Islands, a self-governing Pacific nation, is challenging its constitutional ties with New Zealand by advocating for its own passport. While nearly 15,000 residents enjoy New Zealand citizenship, independence might be required to fulfil this goal. What does this mean for its UN aspirations and shared sovereignty?

Why does Cook Islands want its own passport? Why has New Zealand rejected it?
The Cook Islands, a self-governing Pacific nation, is challenging its constitutional ties with New Zealand by advocating for its own passport. While nearly 15,000 residents enjoy New Zealand citizenship, independence might be required to fulfil this goal. What does this mean for its UN aspirations and shared sovereignty?