Tom Clancy's EndWar is a strategy video game available on Microsoft Windows and all seventh-generation platforms except the Wii, with the timing and flow of gameplay differing across platforms. The console and PC version is a real-time tactics game designed by Ubisoft Shanghai, while the handheld versions feature turn-based tactics. It was released on Nintendo DS, PlayStation 3, PlayStation Portable, and Xbox 360 in November 2008. A Windows version was released in February 2009.

The European Federation, also referred to as the United States of Europe (USE), European State, or Federal Europe, is a hypothetical scenario of European integration leading to the formation of a sovereign superstate, organised as a federation of the member countries of the European Union (EU), as contemplated by political scientists, politicians, geographers, historians, futurologists and fiction writers. At present, while the EU is not a federation, various academic observers regard it as having some of the characteristics of a federal system.