The War For Sol.

A Unified Europe
The European Union, by 2030, is a single massive country, known to most of its citizens as "Europa" administrated in a similar way to the United States. Though individual nations still retain some old customs, by and large all European nations (except for Switzerland, the only country that retains its fierce neutrality) lived by the same laws. Europa has three capitals, Paris, Berlin and Brussels. Paris was the executive capital, Berlin the judicial capital and Brussels the legislative capital. The European Federation had a single president, and its Armed Forces fight as a collective, there is no "French Army" or "German Air Force" instead, there is a European Army, a European Air Force, a European Navy and the European Marine Corps (although, out of tradition there is still a large "European Foreign Legion" that is officially part of the Army.)

The Invasion Of Libya.
Europa had to prove itself to the rest of the world, economically, it was undoubtedly a superpower. But the rest of the world did not believe that Europa's Armed Forces, made up of men from many nations, many of whom did not speak the same language, could effectively fight a war, in 2032, however, these doubts were proved unfounded, as Europa declared its first war as a nation. The conflict that became known as the Libyan War.