Interesting TRIVIA... with what country does France have the longest border?

Interesting TRIVIA... with what country does France have the longest border?

Here's an interesting TRIVIA QUESTION that I came across.

With what country does France have the longest border?

Answer will be given in a few days (Saturday). You might be surprised.

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Just to clarify... the question refers to a land border.
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Those of you who said "Spain" ... that's a good guess, but it's not correct.

The correct answer is "Brazil". The border between French Guiana (which is part of France as an overseas department) and Brazil is 730km (453mi) while the France-Spain border is 656km (408mi).

It's difficult to remember that all of France's overseas departments (French Guiana, Guadeloupe, Martinique, Mayotte, Réunion) are all part of France.
Interesting TRIVIA... with what country does France have the longest border?
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