European Union

"Europe, united. You know, 200 years ago saying that would cause people to look at you funny. Now though, its a dream come true. A peaceful Europe"
-Duchess Maria Romanova II 
The European Union, often simplified as the EU, is an economic federation consisting of 46 independent countries located on or around the European continent. It is the world's most successful economic union, and because of it, the once war-riddled continent has become united under the banner of peace by tying the economies of the continent's nations together. 
EU nations often work as a group, furthering their aspirations and goals together, be it on anything from economic policy to space colonization. 
The only nations in Europe not a part of the union are Switzerland and the Vadican, though both use the Euro as their currency, along with Russia as a result of its ongoing civil war. However, as a result of chaotic inflation and deflation revolving around the Russian Ruble, the Euro has become the unofficial currency of the nation, and most major business is done with it. 
The EU is also one of the four corners of the 2100 world order, alongside its close ally the United States, its rival India, and its partner China. As a part of this order, it heads the Pact of Prosperity, and takes part of the NATO/NHC space program.