/ˈnɛsəˌsɛri vəˈlɪdəti (ʌv ˈtriti)/ – Phrase
Definition: tính hợp hiến (của hiệp ước quốc tế).
A more throughout explanation: “Necessary validity” refers to the essential requirements that must be met for a treaty to be considered legally binding and enforceable under international law. This includes compliance with the formalities of treaty-making, such as consent of the parties, capacity to enter into treaties, and adherence to any procedural requirements specified in the treaty itself or in relevant international agreements. Failure to meet these necessary validity requirements may result in the treaty being considered void or unenforceable.
Example: The necessary validity of the treaty was confirmed by the signatures of all participating parties.