 Nyorera kupfuurira kweiyi ndima - Mukati mema1830 nema1840, hurumende dzeBritain neFrance dzakanga dzisingawirirani nehutungamiri hwaRosas hweUnited Provinces, Argentina yemazuva ano, nemitemo yake yezvehupfumi yekudzivirira maindasitiri emuno nemitero yakakwira. Ikoku kwakanga kwakatungamirira kukuvharirwa namauto maviri, kwechiFrench muna 1838, uye kwechiAnglo-Frenchmuna 1845. Pakazosvika ma1840, kuvapo kwe 