When we consider the United Nation united under the Paris Agreement of Pope Francis no country is independent. The leaders who represent their nations are all feeding the narrative of the UN through their states and councils, selling their national identity and locking down to form a world government. Vatican and Knights of Malta are observers.
Knights of Malta is a military order with the sovereign entity of international law and maintains diplomatic contact with many countries.
States That Are Not UN Members Or Observers
There are other entities that have the observer status but are not recognized as states, such as the Sovereign Military Order of Malta. Another interesting case was granting the European Commission the observer status and later on full rights, although it is not allowed to present candidates during a vote. Other territories and regions such as Western Sahara of Africa and the Cook Islands and Niue of New Zealand are disputed regions. While Western Sahara is unrecognized by the UN and is not a member of any UN bodies, the latter islands are members of specialized institutions of the UN.
States that Are Not UN Members Or Observers of the World Government