United Nations Security Council Resolution 642

United Nations Security Council resolution 642, adopted unanimously on 29 September 1989, after recalling resolutions 598 (1987), 618 (1988) and 631 (1989) 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:

(a) to call on both Iran and Iraq to implement Resolution 598;(b) to renew the mandate of the United Nations Iran–Iraq Military Observer Group for another six months until 31 March 1990;(c) to request the Secretary-General to report on the situation and the measures taken to implement Resolution 598 at the end of this period.