131It should be borne in mind that, under Article 44(1) of the Rules of Procedure, the application initiating proceedings must contain a summary of the pleas in law on which it is based. That summary must be sufficiently clear and precise to enable the defendant to prepare its defence and the Court to rule on the action, if necessary without any other supporting information. The application must, accordingly, specify the nature of the grounds on which it is based, with the result that a mere abstract statement of the grounds does not satisfy the requirements of the Rules of Procedure (judgment of 12 January 1995 in Viho v Commission, T‑102/92, ECR, EU:T:1995:3, paragraph 68). Similar requirements are called for where a submission is made in support of a plea in law (judgment of 14 May 1998 in Mo och Domsjö v Commission, T‑352/94, ECR, EU:T:1998:103, paragraph 333).