There is nothing in the bible that says, "European Federation." But, we do know who is the Prince of the people to come....Rome. We do know the 7-hilled city...Rome.
The Roman Empire was primarily the nations of the Mediterranean basin. On the northern shore, now European; on the southern and eastern shores, now Arabic.
Here is a paragraph from an article on the "Barcelona Process" link Interestingly in involves a fledgling union of nations, "The Five Plus Five." (Note: 5+5=10)
It always pays to keep our eyes open and not get hung up on interpretations that are opinions.
The “Five plus Five”The creation of the “Five plus Five” in July 1990—originally estab-lished as the “Four plus Five” and later enlarged to include Maltalater in 1990—was aimed at developing cooperation between Spain,France, Italy, Portugal, and Malta, on the one hand, and Algeria,Libya, Morocco, Tunisia, and Mauritania on the other. Discussiontopics included natural resource management, economic links andfinancial assistance, immigration, and culture. The “Five plus Five”very soon encountered serious obstacles, the most important ofwhich was the international embargo on Libya. The absence ofEgypt, friction between Algeria and Morocco over the Western Sa-hara and Algeria’s internal instability also undermined the initiative.The “Five plus Five” excluded military security discussions from theagenda; in that regard it presented a unique approach and may have --------------------------------------------------------------------------------
That's certainly a possibility. The article does have this caveat for those who think they have it all figured out:
Some have speculated that the 10 kings referred to in this prophecy will be leaders of 10 regions of the EU that will redraw the boundaries of Europe, ending the present nation-states. The Bible is not clear on exactly which 10 regions or nations will configure the final revival of the militaristic Roman superpower—only that this new superpower will indeed emerge just before Christ's return.