engagement Observer Force for another period of six months, that is, until 31 May 1991; (c) To request the Secretary-General to suhm1t, at the end of this period, a report on the developments in tht· situation and the measures taken to implement resolution 338(1973) Adopted u1wn1111ou.dv ar rh,· 2964th lllt't'(i/18. Decision At the same meeting, following the adoption of resolu tion 679 (1990), the President of the Council made lhe following statement:28 "In connection with the resolution just adopted on tlw renewal of the mandate of the United Nations Disen­ gagement Observer Force, I have been authorized to make the following complementary statement on behalf of the Security Council: ... As is known, the report of the Secretary-General on the United Nations Disengagement Observer 25 S/21323. 26 Sec Official Records of the Security Council, Forty-.fi_fth \"ew, Supple111e11t Ji,r Ocroher, November and Dec1'mher 1990. 27 /hid., documrnt S/21950 and Corr. I. ''s/21974 