An Advisory Opinion from the International Court of Justice is legal advice provided to the United Nations or a specialized agency by the International Court of Justice, in accordance with Article 96 of the UN Charter. The General Assembly and the Security Council may request advisory opinions on "any legal matter".
ICJ Advisory Opinions carry great legal weight and moral authority. They are often an instrument of preventive diplomacy and have peace-keeping virtues. Advisory opinions also, in their way, contribute to the elucidation and development of international law and thereby to the strengthening of peaceful relations between States.