 Nyorai kupfuurira kweiyi ndima - Kurasikirwa kwekutengeserana kwakanga kusingagamuchiriki kuBritain neFrance. Pana 17 September 1845 marudzi ose ari maviri akavamba kuvharirwa kweAnglo-French kweRío de la Platauye akasimbisa kufamba kwezvikepe kwakasununguka muRío de la Plata Basin kana kuti Platine region. Argentina yakadzivisa dzvinyiriro ndokurwisana kusvikira kumira. Iyi hondo isina kuziviswa yakaparira kukuvadzwa kukuru mune zvoupfumi kuFrance neBritain kupfuura kuArgentina. MaBritish akatarisana nekumanikidzwa kuri kuwedzera kumba pavakangoona kuti kupinda kwakawanikwa kune mamwe madoko mukati medunhu rePlatine hakuna kudzorera kurasikirwa kwekutengeserana neBuenos Aires. Britain yakagumisa hondo dzose ndokubvisa chibvumirano chacho musi wa15 July 1847, ichiteverwa neFrance musi wa12 June 1848. Rosas akanga aramba nenzira inobudirira marudzi maviri ane simba zvikurusa Pasi pano; chimiro chake, uye cheArgentina, chakawedzera pakati pamarudzi echiSpanish America. Nyanzvi yezvemagariro evanhu yokuVenezuela Andrés Bello, ichipfupikisa murangariro wakapararira, yakafunga nezvaRosas pakati penhengo dzinotungamirira dzevarume vakuru veAmerica. 