Mezue ahịrịokwu na-esonụ: Gọvanọ Buenos Aires Juan Manuel de Rosas gosipụtara ikike na-eto eto na mba ndị ọzọ n'oge ọchịchị ya 1835-1852 ma guzogide ọtụtụ nnupụisi nke Unitarian, mana emesịrị merie ya na 1852 site n'aka ndị agha jikọtara ọnụ nke Gọvanọ Entre Ríos Federalist Justo José de Urquiza, bụ onye boro Rosas ebubo na ọ naghị eme ihe iwu Federal Pact kwuru maka Iwu Mba. N'afọ 1853, e tiri iwu gọọmentị etiti (iwu nke Argentine ugbu a, site na mmegharị) wee họpụta Urquiza Onye isi ala nke Argentine Confederation. Otú ọ dị, mgbe afọ 1852 gasịrị,
Agha Caseros, Mpaghara Buenos Aires apụla na Confederation. Na 1859, mgbe Agha nke Cepeda gasịrị, steeti Buenos Aires sonyeere Confederation, ọ bụ ezie na e nyere ya ikike ime mgbanwe ụfọdụ na Iwu ya. N'ikpeazụ, mgbe Agha Pavón nke 1861 gasịrị, Buenos Aires weghaara Njikọ ahụ.