In 1961 CIA-trained Cuban exiles attempted an overthrow of Castro's regime, resulting in the Bay of Pigs fiasco.
Castro's regime was attempted to be overthrown by CIA-trained Cuban exiles.
mnli hypothesis: Castro's regime was attempted to be overthrown by CIA-trained Cuban exiles. premise: In 1961 CIA-trained Cuban exiles attempted an overthrow of Castro's regime, resulting in the Bay of Pigs fiasco.