487. Many non-nuc lear-l/eapon states have urged the nucrear-weapon states to extendcredible and effective assurances not to use or threaten to use nuclear r{eapons,such assurances coufd take the forrn of 'positive" guarantees, i.e" assistance asamong a11ies in the case cf nuclear threat or br-acknail as well as "negative"assurances that the nuclear-weapon states vi11 not use or threaten to use suchweapons against non-nuclear-vealon states. The united states, the ussR and theunited Kingdom have stated their inabifity to go beyond security counc ifresolution 25, (f968) in extending "positive', guarantees, a.Ithough Article 51 ofthe United Nations charter could be interpreted as providing for collective defenceagainst aggression with conventional as well as nuclear veapons. on the otherhand, general support has been evoked by the idea of "negative" security assurancesto non-nuc lear-ueapon states. But the existing pred.ges are not uncondiiional. )+BB. rn l_97 6 t:'e ceneral As sembry invited the nucreax-weapon states to ertendassurances against the use or threat of use of nuclear weapons tonon-nuclear-weapon States I'vhich are not parties to the nuclear secrrritvarrangements of the nuciear powers", At the tenth special session of the GeneralAssenbly, the nuclear Powers rnade unilateral declarations on the question. Ifithone exception, these declaz'ations r"rere conditional in nature and limited in scope.The Final Document, in paragraph 32, urged the nuctear-weapon states to conclude"effeetive arrangements, as appropriat", to as"l.,r" non_nuclear_veapon Statesagainst the use or the threat of use of nuclea'' weapons',. A year iater, pakistan and the soviet union lnade separate proposals for the consideration of aninternational convention on this subject" The connnittee on Disarrnament un.lertookan in-deFth consiileration of the subject during its flrst session in 1979" andnoted. that there was no objection in principle to the ado.ption of a dJaftA/35/39? Engli sh Jr]tnex Pc,ge 1\! convention, although the difficulties involved were also pointed out, Negative
**Analysis**
The text appears to be discussing international relations and disarmament, specifically the extension of assurances by nuclear-weapon states to non-nuclear-weapon states not to use or threaten to use nuclear weapons. It mentions the United Nations, the Security Council, and the General Assembly, indicating a focus on international governance and diplomacy.

**Category**
International relations, Science and technology