Reaffirming the provisions of its resolution 186 (1964) and other relevant resolutions, 1. Extends once more the stationing in Cyprus of the United Nations Peace-keeping Force established under resolution 186 (1964) for a further period, ending on 15 December 1985; 2. Requests the Secretary-General to continue his mission of good offices, to keep the Security Council informed of the progress made and to submit a report on the implementation of the present resolution by 30 November 1985; 3. Calls upon all the parties concerned to continue to co-operate with the Force on the basis of the present mandate. Adopted unanimously at the 2591st meeting. Decisions At the 2607th meeting, 62 on 20 September 1985, before adjourning the meeting, the President made the following statement63 on behalf of the Council: "The Security Council has been seized with the Cyprus question since 1964. The members of the Council have been kept informed of the efforts begun by the Secretary-General in August 1984 as part of the mission of good offices entrusted to him by the Council. "On 20 September 1985, the members of the Council heard an oral report from the Secretary-General, in the course of which he conveyed his assessment that his initiative had brought the positions of the two sides closer than ever before and expressed his conviction that what had been achieved so far should lead to an early agreement on the framework for a just and lasting settlement of the Cyprus question in accordance with the principles of the Charter. Recalling their support for the sovereignty, independence, territorial integrity, unity and non-alignment of the Republic of Cyprus, members of the Council expressed strong support for the mission of the Secretary-General under his mandate from the Council. "The members of the Security Council, therefore, called upon all parties to make a special effort in cooperation with the Secretary-General to reach an early agreement." 62 The agenda for the meeting was: Complaint by Angola against South Africa. 63 S/17486. At its 2635th meeting, on 12 December 1985, the Council decided to invite the representatives of Austria, Cyprus, Greece and Turkey to participate, without vote, in the discussion of the item entitled "The situation in Cyprus: report of the Secretary-General on the United Nations operation in Cyprus" (S/17657). 64 At the same meeting, the Council also decided to extend an invitation to Mr. Ozer Koray under rule 39 of the provisional rules of procedure. Resolution 578 (1985) of 1l December 1985 The Security Council, Taking note of the report of the Secretary-General on the United Nations operation in Cyprus of 30 November and 11 December65 and of 9 December 1985,66 Noting the recommendation by the Secretary-General that the Security Council should extend the stationing of the United Nations Peace-keeping Force in Cyprus for a further period of six months, Noting also that the Government of Cyprus has agreed that in view of the prevailing conditions in the island it is necessary to keep the Force in Cyprus beyond 15 December 1985, Reaffirming the provisions of its resolution 186 (1964) and other relevant resolutions, 1. Extends once more the stationing in Cyprus of the United Nations Peace-keeping Force established under resolution 186 (1964) for a further period, ending on 15 June 1986; 2. Requests the Secretary-General to continue his mission of good offices, to keep the Security Council informed of the progress made and to submit a report on the implementation of the present resolution by 31 May 1986; 3. Calls upon all the parties concerned to continue to co-operate with the Force on the basis of the present mandate. Adopted unanimously at the 2635th meeting. 64 See Official Records of the Security Council, Fortieth Year, Supplement for October, November and December 1985. 65 Ibid., documents S/17657 and Add.2. 66 Ibid., Add. I. 15