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Membership in particular has seen a great deal of reform in countries seeking to join; for example the huge reforms seen in Turkey such as the abolition of capital punishment. The development of the Union's influence, and the draw of membership, has been the subject of a number of academic writings. For example Mark Leonard describes the area of EU influence as the Eurosphere.
According to Mark Leonard, the Eurosphere includes (what were in 2004) 109 countries. In Europe, these were the then-25 members, applicant countries, western Balkan countries and European CIS countries (including transcontinental countries such as Kazakhstan). Curiously he does not mention western European countries such as Norway who are integrated into the EU's single market. Outside Europe, he gives a blanket list of every African country and every Middle Eastern country, that is so the countries forming the eastern border of the Eurosphere are Iran, Azerbaijan, Russia and Kazakhstan.
Other countries that could be said to be within the Eurosphere might include western European countries, such as those in the European Economic Area or using the euro, or the Union's overseas territories. Both these groups have strong economic links, through the afore mentioned relationships.
The postmodern, European answer to threats is to extend the system of co-operative empire ever wider. "I have no way to defend my borders but to extend them", said Catherine the Great—and the European Union sometimes seems to be saying the same.
But the next wave of European transformation is only just beginning. The European Union is starting to develop an enormous sphere of influence, extending way beyond its borders, that could be called the "Eurosphere". This belt of eighty countries covering the former Soviet Union, the Western Balkans, the Middle East, North Africa, and Sub-Saharan Africa accounts for 20 per cent of the world's population.
What we have is the first non-imperial empire...We have twenty-seven countries that fully decided to work together and to pool their sovereignty. I believe it is a great construction and we should be proud of it.
Ankerl, Guy (2000). Global communication without universal civilization. INU societal research. Vol.1: Coexisting contemporary civilizations : Arabo-Muslim, Bharati, Chinese, and Western. Geneva: INU Press. ISBN2-88155-004-5.