United Nations Security Council resolution 685, adopted unanimously on 31 January 1991, after recalling resolutions 598 (1987), 618 (1988), 631 (1989), 642 (1989), 651 (1990), 671 (1990) and 676 (1990), and having considered a report by the Secretary-General Javier Pérez de Cuéllar on the United Nations Iran–Iraq Military Observer Group, the Council decided: