Japanese to English Social Sciences Social Science, Sociology, Ethics, etc. Philosophy of International Law

しかし同時に、英国（と西ドイツ）がアイスランドの五〇海里漁業水域は違法・無効であると訴えた一九七四年の漁業管轄権事件判において、ICJが「国際法に則ってイギリスの主張に軍配を挙げながら、他方で漁業権益をめぐって交渉することを求めたこと」を「ルールに基づく判断を下したうえで、現実的な妥当性を確保する途を示した」と評価し、「紛争解決を目的とする裁判所は、単に法を適用するだけでは満足しなかったことが重要」であり、ICJが払った「『賢慮』の一端」と紹介した.

My draft translation so far:
At the same time, however, in the case of the Fisheries Jurisdiction Cases of 1974 in which England (and West Germany) argued that the unilateral extension of the exclusive fishing rights to Iceland were illegal and invalid, the ICJ evaluated that “even though according to international law England was in the right, on the other hand accepted to negotiate fishing rights” was “a judgment issued based on rules, and served purpose of finding a workable solution” … “it is important that the court, whose objective was to resolve disputes, was not content to simply apply law” thus introducing “portion of 'deference'” that was directed by the ICJ.

But what is this 「『賢慮』の一端?

Thanks,