The economy of Europe comprises more than 730 million people in 48 different countries. Like other continents, the wealth of European states varies. Although the poorest are well above the poorest states of other continents in terms of GDP and living standards, the difference in wealth across Europe can be seen, roughly, in the former Cold War divided. Some countries are breaching the divide, while most European states have GDP per capita higher than the world's average and are very highly developed. Some European economies, despite their position over the world's average in the Human Development Index, are still catching up with European leading countries. Throughout this article, Europe and derivatives of the word are taken to include selected states whose territory is only partly in Europe (euro), such as Turkey, Azerbaijan, and the Russian Federation, and states that are geographically in Asia bordering Europe and culturally adherent to the continent (euro), such as Armenia, Georgia, and Cyprus. In 2010, Europe had a nominal GDP of $19.9 trillion. Europe's largest national economy is that of Germany, which ranks fourth globally in nominal GDP and fifth in purchasing power parity GDP. It is followed by the United Kingdom, which ranks fifth globally in nominal GDP, and France, which ranks sixth globally in nominal GDP. Italy ranks seventh globally, while Russia ranks tenth and Spain ranks thirteenth globally in nominal GDP. These six countries all rank in the world's top 15, accounting for half of the 10 wealthiest ones. The end of World War two brought European countries closer together, culminating in the formation of the European Union and the introduction of a unified currency, the euro. The EU as a whole is the wealthiest and largest economy in the world, surpassing the US by more than $2,000 billion. Europe remained the world's wealthiest region in...