Chaque étape du processus a fait naître une Union européenne plus interactive, plus complexe, et a eu un impact plus profond parce que les défis étaient plus grands, plus difficiles à appréhender, et demandaient des modes de collaboration plus élaborés.
Each step in this process has led to a European Union that was more interactive, more complex, and had a more profound impact because the challenges were greater, more difficult to grasp, and called for more elaborate forms of cooperation.