The European integration model has proven to be so far a successful one, with a high consideration from the other countries of the world and their attempts to replicate its components and to learn from its experience of regional integration is perhaps the most sincere form of appreciation. Contemporary global economy knows various other models of economic integration, but none of the existing forms of regional integration was not up to the achievements of the EU which is distinguished primarily

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... by the stage reached and function andbr /its ability to create unity in the context of diversity. Irreversible process, and currently ongoing, and designed to produce positive results in perspective, the enlargement is one of the most significant factors of European construction success, always accompanying its history, marking the development, institutional structure, mode of cooperation and its policies. For these reasons, the present paper aims to approach the European integration model by the factors that influenced the enlargement and also by the course of events that are reflected in so-called "waves" of EU enlargement.