The French border with Brazil is France's longest land boundary
France shares its longest land border with Brazil rather than a European neighbor, a geographic quirk resulting from the South American territory of French Guiana.
France shares a 730-kilometer border with Brazil through its overseas department of French Guiana. This boundary is significantly longer than the 623-kilometer border France shares with Spain or its 450-kilometer frontier with Belgium. Because French Guiana is a fully integrated region of the French Republic, this tropical rainforest boundary is technically an external border of the European Union.
There's more to this story — open the app to keep reading.