The parties were urged to fully implement an agreement on the normalisation of their relations, cease violations of the demilitarisation regime, reduce tension and to ensure freedom of movement to United Nations observers.[3] The Secretary-General was requested to report to the Council on the situation by 15 October 1998 concerning progress towards a peaceful solution of the dispute between Croatia and Serbia and Montenegro. Finally, the Stabilisation Force, authorised in Resolution 1088 (1996) and extended by Resolution 1174 (1998), was required to co-operate with UNMOP.