Yarjejeniyar El Pardo (1778)

Yarjejeniyar El Pardo (1778) ta sanya hannu a ranar 11 ga Maris 1778 ta nemi kawo karshen rikici tsakanin Spain da Portugal a yankin Río de la Plata, tare da kan iyaka na zamani tsakanin Argentina da Uruguay. Ya tabbatar da mallakar kasar Spain na Colonia del Sacramento, yanzu a Uruguay, yayin da Portugal ta amince da mallakar yankuna masu mahimmanci a Afirka, yanzu kasar Equatorial Guinea ta zamani. A sakamakon haka, Spain ta janye daga kasashe zuwa arewa, yawancinsu suna cikin jihar Rio Grande do Sul da ke kudancin Brazil.

Fage
Kusan shekaru 300, fassarori daban-daban na yarjejeniyar Tordesillas sun haifar da takaddamar kan iyaka tsakanin Spain da Portugal game da yankin Río de la Plata. Rikicin Fotigal a wannan yanki ya baiwa 'yan kasuwarsu damar gujewa takunkumin kasuwanci da Spain ta sanya akan shigo da kaya zuwa Kudancin Amurka ta Spain. Wannan ya kare a cikin 1690 lokacin da Portugal ta kafa cibiyar kasuwanci ta Colonia del Sacramento, kusa da kogin Buenos Aires wanda ya zama babbar cibiyar kasuwancin da aka yi fasakwaurin. Kasashen biyu sun yi yunkurin sasanta wannan takaddama ta 1750 yarjejeniyar Madrid amma Charles na Spain ya soke shi a 1761. Spain ta shiga yakin shekaru bakwai a gefen Faransa a 1762; mamayewar da suka yi a Portugal ya kare da bala'i, amma sun kame Colonia del Sacramento da filayen yanzu a jihar Rio Grande do Sul ta kudancin Brazil. Ko da yake an tilasta musu mayar da Colonia del Sacramento da sauran kayayyakin Portuguese a karkashin labarin XXI na yarjejeniyar Paris ta 1763, Spain ta ci gaba da samun ribar da ta samu a Rio Grande, tun da sun yi ikirarin cewa wadannan kasashe a hakikanin Mutanen Espanya ne.

Manazarta
https://en.wikipedia.org/wiki/Treaty_of_Tordesillas
https://en.wikipedia.org/wiki/R%C3%ADo_de_la_Plata