The European Neighbourhood Policy (ENP) is inherently political in nature. The rationalistic considerations underpinning its launch and subsequent elaboration have necessarily influenced the choice of the legal framework. At the same time, the rules regulating the conduct of EU foreign policy had a reciprocal impact on policy choices made. The legislative and political developments following the ratification of the Lisbon Treaty and the regional split in the policy arguably injected new dynamics into the interaction between the political and legal aspects of the ENP.
The chapter traces the relationship between the political objectives and the legal framework of the ENP through three phases of its existence, with a focus on the eastern neighbourhood, comprising Belarus, Ukraine, Moldova and the South Caucasus, as the addressee of the exclusionary rationale of the policy. First, the formulation and the elaboration of the initiative is revisited as the first phase of the existence of the policy. The second phase concerns the ‘Eastern Partnership’ initiative established as a result of the regional split within the policy. The third phase refers to the law and political objectives of the ENP as translated into Article 8 TEU.