 Nyora kupfuurira kweiyi ndima - Munguva yekupindira kweCuba muAngola, nyanzvi dzezvokurapa dzeUnited Nations dzakasimbisa kuti zvisaririra zvevose vari vaviri VX uye sarin nerve agents zvakanga zvawanikwa muzvirimwa, mvura, uye ivhu umo mauto eCuba akanga achiita mabasa mukurwisana neNational Union for the Total Independence of Angola UNITA vapanduki. Muna 1985, UNITA yakaita kutaura kwokutanga kwezvakawanda kwokuti mauto ayo akanga ari vavariro yezvombo zvemakemikoro, zvikurukuru organophosphates. Gore rakatevera racho vapanduki vakashuma kuti vakanga vaputirwa nechinhu chisingazivikanwi chine ruvara rwegirini-yeruvara pazviitiko zvitatu zvakasiyana. Zvichienderana nokureba uye kusvibiswa kwavakaitwa, vakaurayiwa vacho vaipofumadzwa kana kuti kufa. Utachiona hwacho hwakaonekwawo kuti hwauraya zvirimwa. Munguva pfupi yapfuura, UNITA yakaonawo kurwisa kwakaitwa nechinhu chebhuruu icho chaiti chakafanana negasi resardard. Pakuvamba sa1984 boka rokutsvakurudza rakatumwa neUniversity of Ghent rakanga raongorora varwere muzvipatara zveUNITA zvairatidza zviratidzo zvokuputirwa kumagasi etsinga, kunyange zvazvo risina kuwana uchapupu hwegesi yesardhi. 