State all countries does not belong in United nations?

There are currently 195 countries in the world, and out of those, the following countries do not belong to the United Nations:

1. Vatican City
2. Taiwan (officially known as the Republic of China)
3. Kosovo (recognized by some UN members but not by others)
4. Western Sahara (recognized by some UN members but not by others)

- Taiwan
- Vatican City
- Kosovo
- Palestine
- Western Sahara
- Somaliland
- Transnistria
- Abkhazia
- South Ossetia
- Artsakh
- Donetsk People's Republic
- Luhansk People's Republic