The Colorados vaifarira vaArgentine vakaregera Unitarios, vazhinji vavo vakanga vapotera kuMontevideo apo mutungamiri weBlanco Manuel Oribe aiva shamwari yepedyo yomutongi weArgentina Manuel de Rosas. Pana 15 June 1838, uto rakatungamirirwa nomutungamiri weColorado Rivera rakapidigura Mutungamiri Oribe, uyo akatizira kuArgentina. Rivera akazivisa hondo kuna Rosas muna 1839. Kurwisana kwacho kwaizotora makore 13 uye kwaizozivikanwa seGuerra Grande
(Hondo Huru).