Nous pouvons donc conclure les travaux relatifs aux décisions déjà prévues, mais aussi lancer de nouveaux projets très importants pour l'Europe, tels que la politique énergétique.

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Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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So we can conclude the work on decisions that were already in the pipeline but also launch new, very important, projects for the work of Europe, such as energy policy.