Federation of Western Europe

The Federation of Western Europe is a supernational federation in Generation 1

Only slightly dippier than the European Union flag.

Western Europe is unified (or at least semi-unified) under the banner of the Federaton of Western Europe by the year 2000.

The FWE's formation was presumably at least in part a response to the continued existance of the Soviet Union, which did not fall in the period leading up to Transformers: The Movie as it did in the real world.

Fiction

Young Corgi

BBTI

An alien civilization was discovered beneath the Federation of Western Europe's appropriately-named Erebus oil field.

From Teletraan I: The Transformers Wiki, a Wikia wiki.