Operation Condor
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Operation Condor was a campaign of political repression involving intelligence operations, coups, and assassinations of left-wing sympathizers, liberals and democrats and their families in South America which formally existed from 1975 to 1983. Wikipedia
Start date: November 1975
Location: South America and Southern Cone
End date: 1983
Executed by: Intelligence agencies of respective participating countries
Outcome: Concluded after the fall of the Argentinean military junta