20According to the Court’s settled case-law, in the context of the cooperation between the Court and the national courts provided for in Article 267 TFEU, it is solely for the national court before which the dispute has been brought, and which must assume responsibility for the subsequent judicial decision, to determine, in the light of the particular circumstances of the case in the main proceedings, both the need for a preliminary ruling in order to enable it to deliver judgment and the relevance of the questions which it submits to the Court. Consequently, where the questions submitted concern the interpretation of EU law, of which the Montreal Convention forms an integral part (see, to that effect, judgments of 6 May 2010, Walz, C‑63/09, EU:C:2010:251, paragraphs 19 and 20, and of 12 April 2018, Finnair, C‑258/16, EU:C:2018:252, paragraphs 19 and 20), the Court is in principle required to give a ruling (see, inter alia, judgments of 19 November 2019, A.K. and Others (Independence of the Disciplinary Chamber of the Supreme Court), C‑585/18, C‑624/18 and C‑625/18, EU:C:2019:982, paragraph 97, and of 19 December 2019, Junqueras Vies, C‑502/19, EU:C:2019:1115, paragraph 55 and the case-law cited).
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