In South America, Brazil delivers Uruguay an ultimatum over the security of its southern border

A civil war in Uruguay had grown out of a 1863 revolt, supported from Argentina, against the ruling Blanco Party.  Brazil, the dominant power in the region, was wary of unrest on its southern border and became increasingly belligerent to the Blanco faction. Negotiations to assure protection of Brazilian citizens and interests in the revolt broke down and Brazil delivered an ultimatum that the Uruguayan leader, Atanasio Aguirre rejected. Within a week, Brazil had initiated what amounted to a state of war with Montevideo.  (By John Osborne)
Source Citation
Hendrik Kraay, Thomas Whigham (eds), I Die with My Country: Perspectives on the Paraguayan War, 1864-1870 (Lincoln, NE: University of Nebraska Press, 2004),122-123
    Date Certainty
    Exact
    Type
    US/the World
    How to Cite This Page: "In South America, Brazil delivers Uruguay an ultimatum over the security of its southern border ," House Divided: The Civil War Research Engine at Dickinson College, https://hd.housedivided.dickinson.edu/index.php/node/42737.