Help understanding base expansion?

[Pilot Jeb]

I opened my HQ in Réunion, and when I went to expand it says "Your base airports must be located in Réunion or in any area of France." but I can only expand within Réunion? I thought by that description I would be able to expand into any territory controlled by France, or France itself. Am I misunderstanding?

[gazzz0x2z]

This is bugged (or WAD but not satisfying) since ages.

[Captain Morph]

Réunion is part of France, but for expansion, the game treats it separately. You should be able to expand to mainland France or other French territories, but sometimes it takes a few tries or checking the specific regions allowed. Try looking for a more detailed list of regions or restarting to see if that helps.