Reply #2: Plenty of stuff here on the subject of Uruguay [View All]

[dipsydoodle]

and USA interference.

From 2002 :
Newly declassified documents detail the Nixon administration's broad-gauged efforts to prevent a victory by the leftist “Frente Amplio” in the Uruguayan presidential elections of 1971. The documents show that Nixon was aware of – and may in fact have been complicit in – Brazilian efforts to influence the election results. Six weeks ago, an Associated Press report by Ron Kampeas, citing a newly declassified document from the Nixon collection at the National Archives, first revealed that during a meeting with then British Prime Minister Edward Heath President Nixon admitted, “Brazil helped rig the Uruguayan elections.”

http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB71/

1975 was the aftermath.