JOO. Nuclear weapons are the rnost serious threat to international security. onereason for this is that existing nuclear-r,ieapon arsenal-s have acquired a role oftheir or,'n in international rel-atiohs. It is today possible that a grave accidentor evcn a devastating var nay be originated by the nuclear-weapon systemsthemselves, and the perceived threat the1, constitute against each other. Thiscould be brought about, especially in a situabion of high tension, by a pre-emptivestrike or through an escalation from the conventional- to the nuclear level. 501. Tt is therefore imnortant to recall- that the General Assernbly, at its tenthspecial session in 1978, declared that effective neasures of nuclear disarnament and the prevention of nuclear war have the hichest priority, and urged. a1r nuclear- weapon States, in particular those arnong them vhich possess the most importantnucfear arsenals, to impJ"ernent the measures set out in the Final Document inachieving these obJectives. rt is a r0atter of deep regret and concern that in the t1^Io years since then, no reaL progress has been acbieved and that the nuclear-armsrace continues unabated in bcth quantitative and qualitative terns. 502. When nroceeding tovard.s nuclear disarmarnent, it is essential to idenLify, asclear]y as possible" the problens that will need to be confronted and resolved.rn the first instance, the main problem is undoubtedly the very size and complexityof the arms race. AccordinE5 to the latest figures, the world today i.s spendingeveay year the staggering amount of over $500 t,ittion, that is to say, al]rlost
**Analysis**
The text primarily discusses the threat of nuclear weapons to international security and the lack of progress in nuclear disarmament. It highlights the risks of accidents or escalation and emphasizes the need for measures to prevent nuclear war. The language used is formal and diplomatic, suggesting a focus on international relations and security.

**Category**
International relations, Science and technology