59, A further aspect of rrFortress soutbern Africa" is the increasingly expLicit andless +d- hoc outward erbension of the South African strategic zone to-elrbrace eventsnot simply on that cormtryr s own innediate bord.ers but al_so in neighbouringcormtries. 90/ Presagert by prior instancee of direct south African politicalinterwention in her neighbours t affairs, the heightened enphasis on what South Africaunifateral-Ly has d.efined as its extend.ed strategic "oou r.i explicitly articuLatedin_the l-9?9 White Paper on Defence. 9l/ Beportea heaw South African financial- andnilitary support to the fomer MuzorETa governnent in Zinbabve throughout 19?9, asveLl' as south Africars apparent intention to retain a nilitary pr"".rr." in Na,nibiawhile keeping cLose control over political events there, were congruent rrrith that 85/ Jastern South Africars Narrowing Security Options, p, 28. 81 / rbid. , 'rHidden fu'ms pover" ,4 l"lay 19 79. 88/ Jaster, South Africars l{arrowing Security Options, p. 28, 89./ Ibid._, pp. 2B-29. ..8/ Ibid., pp. 33-3)+, lB; Gutteridge, "South Africars Defence postur"elr n. 1o. anai "South Africa Accepts Decision in Rhod.esia but Issues a Warningr', Nen York Times, 5 Msrch 1980. ..pll-White Paper on Defence, 19?9 (pyetoria: Governnent printer, 19?9),p. r-r-a, a.To the Point ( Sandton, South Africa) ,A/35/\o? English Annex va.p.e lo more interventionist postuIe. 92/ In turn, characLeristic of this far-reaching nilitary policy in recent year; have been attacks by South Africars forces against neighbouring Afri can cortrtries ' 60. It appeared for a vhife that this hard- line tovard the outside world would be acconpanild internally by a limited programme of doriiestic refonn under the ner'r government of Prime l{inister Botha. Mentioned as proposed changes were constitutional reform, reduction of econonic and social discrimination" revision of lass laws for se.Iected categories of black workers, and extension of some irade-union rights to blacks. 93/ However, Iitt1e, if any, progress was made in I9?9; pass laws remained as befOre, while Parlianentary action was not forthcoming in lessening economic and. social discrinination. iliost importantly, Prirne Minister Bothats recent speeches ha.ve nade it clea1' that bfacks l|llill play virtually no role in working out any new constitution a::d that apartheid and sepafate devel-opment renain unassailable tenets of South Africars rut ia?Tlt iottal Party " 9V 6f. A finaf concomitant of ttFortress Southern Africa", including the hard line on