A/RES/57/79 an obligation for all States to pursue in good faith and bring to a conclusion negotiations leading to nuclear disarmament in all its aspects under strict and effective international control, Mindful of paragraph 114 and other relevant recommendations in the Final Document of the Twelfth Conference of Heads of State or Government of NonAligned Countries, held at Durban, South Africa, from 29 August to 3 September 1998, 10 calling upon the Conference on Disarmament to establish, on a priority basis, an ad hoc committee to commence negotiations in 1998 on a phased programme of nuclear disarmament and for the eventual elimination of nuclear weapons with a specified framework of time, Recalling paragraph 72 of the Final Document of the Thirteenth Ministerial Conference of the Movement of Non-Aligned Countries, held at Cartagena, Colombia, on 8 and 9 April 2000, 11 Bearing in mind the principles and guidelines on the establishment of nuclearweapon-free zones, adopted by the Disarmament Commission at its substantive session of 1999, 12 Welcoming the United Nations Millennium Declaration, 13 in which heads of State and Government resolve to strive for the elimination of weapons of mass destruction, in particular nuclear weapons, and to keep all options open for achieving this aim, including the possibility of convening an international conference to identify ways of eliminating nuclear dangers, Reaffirming that, in accordance with the Charter of the United Nations, States should refrain from the use or the threat of use of nuclear weapons in settling their disputes in international relations, Seized of the danger of the use of weapons of mass destruction, particularly nuclear weapons, in terrorist acts and the urgent need for concerted international efforts to control and overcome it, 1. Recognizes that, in view of recent political developments, the time is now opportune for all the nuclear-weapon States to take effective disarmament measures with a view to achieving the elimination of these weapons; 2. Also recognizes that there is a genuine need to diminish the role of nuclear weapons in strategic doctrines and security policies to minimize the risk that these weapons will ever be used and to facilitate the process of their total elimination; 3. Urges the nuclear-weapon States to stop immediately the qualitative improvement, development, production and stockpiling of nuclear warheads and their delivery systems; 4. Also urges the nuclear-weapon States, as an interim measure, to de-alert and deactivate immediately their nuclear weapons and to take other concrete measures to reduce further the operational status of their nuclear-weapon systems; _______________ 10 A/53/667-S/1998/1071, annex I. A/54/917-S/2000/580, annex. 12 Official Records of the General Assembly, Fifty-fourth Session, Supplement No. 42 (A/54/42), annex I. 13 See resolution 55/2. 11 3