Are those part of the EU? The whole membership of EU (or more precisely European institutions) is a mess and I really only know EEA, Schengen and Eurozone by heart. But there definitely are territories which are part of e.g. France, but not part of the EU
I found it interesting that when the UK was part of the EU, the Isle of Man was not, but because they held British Passports, the people of the Isle of Man were EU citizens.
I think all French territories are part of the EU, but some other countries work differently. The prime example is St. Martin, where the French part is in the EU, but the Dutch isn't (yes that technically puts a EU border through the middle of the island, although there were no pass controls when I was last there.).
Sure they are, 2 seconds of googling compared to a minute writing your post:
> The European Union (EU) has nine 'outermost regions' (ORs): Guadeloupe, French Guiana, Martinique, Mayotte, Réunion and Saint Martin (France), the Canary Islands (Spain) and the Azores and Madeira (Portugal). The ORs are an integral part of the EU and must apply its laws and obligations.
Yes, but Martinique is not considered a territory, and is considered part of the EU.
French Guiana is in the EU.
They are part of the EU and are part of the EU customs area, there is no practical difference with other EU territories regarding trade.
They are not part of Schengen (but EU citizens don't need any visa, it's mostly intended to curb illegal immigration from South America via Guiana) and have the ability to use different VAT rates from mainland France, but that's all.