Case C-856/19: Judgment of the Court (Sixth Chamber) of 25 March 2021 — European Commission v Hungary (Failure of a Member State to fulfil obligations — Article 258 TFEU — Directive 2011/64/EU — Article 10(2) and (3) — Excise duty applied to manufactured tobacco — Rate of the overall excise duty on cigarettes lower than the prescribed minimum rate — Internal difficulties — Threat of serious disruption to public order — Duty of sincere cooperation)