32. The trends for the 1980s have nagnifietl these dangers rnanifold along with an alnost absurd Possibility that, vrithout urgent dlsamament measures' a part or whole of these aleadly arienals ,1ay be actually used. In this respect, the technological and strategic trend; for the coning decade are scmehthat different fron the tuo Prececling ii' If a najor technological thrust earller Produced innovations that woulal nake a strategy of using nuclear neaPons' to a certain extent,unthinkable.thereisnorapronouncedenphasistoproducetechnological innovations that would nake nuclear yJeapons usable. Strategic doctrines about a limited nuclear war are accornpanying technological lnnovatlonsr such as the niniaturization of nuclear ,.ipon" and develolment of lnsertible nuclear cornPonents (INCS) rrhich could convert a conventlonal weapon into a nucLear one' A detalled tiescription of all these develolments falls outside the scope of the Present report. Hold€V€r r some of its relevant features, wtrich have a direct bearlng on the p.-obL.* areas associatetl vrith nuclear disarmament, need to be nentioned' 33. The first is lethality and accuracy through ad'litions to the yieLd and reductions in the range of circular error probabilities' In tbe early 1970s' tbe mostsoPhisticate.lmissilesofthetwoleatlingnuclearPc'r'ershadacl.rcularerrorproUaultity of about 5OO metres, tth ich could be achieved only from f i:<edt i,and-based 1aunching sltesl subrnar lne-launched nissiles haal substantially lqver A/37/3e6 Engl lsh Annex Page 18 CHART 3. RATES OF CROWTH OF MILITARY EXPENDITURE5, 1g?2-Ig8fI Selected groups of countries and world total 1972-75 4Derived ftorn table 2.L975-74 1978- 81(Percentage average annual increase of real expenditure) DEVELOPING COUNTRIES OTI{ER INDUSTRIALIZED COUNTRIES RLD TOTAI SIX MAIN MILITARY A/37/3s6 Engl ish Annex Paqe 19 accuracies. At the end of the 1970s, the situation had changed conslderably rtith the installation by the uniteal states of Ns-20 guidance systems on Minuteman III, reducing the circular error probability to less than 200 netres' this increase ln
**Analysis**
The text appears to be discussing the advancements and trends in military technology, particularly in the area of nuclear weapons. It mentions the development of new technologies, such as miniaturization and the creation of insertable nuclear components, which could potentially make nuclear weapons more usable. The text also touches on the issue of disarmament and the need for urgent measures to prevent the use of these weapons. Given the focus on military technology and disarmament, it is likely that the text falls under the category of Science and Technology.

**Category**
Science and Technology