🚨 #fridaygeotrivia begins! 🚨

Our question: name informal multi-national groupings that are used in every day speech. For example: the benelux countries: with Belgium 🇧🇪, Netherlands 🇳🇱, and Luxembourg 🇱🇺

Must include the name and emoji flags of at least 3 countries that are considered part of the region. (and of course the hash tag).

We don’t mean formal groupings like the European Union 🇪🇺, or United Nations 🇺🇳, or NATO.

The question is intentionally a bit ambiguous. Have fun with it.