The US State Department discovered that details of the plan had become widely known. US Secretary of State Dean Acheson became concerned that the coup attempt would damage the image of the US, which had committed to a policy of non-intervention, and so terminated the operation. Operation PBFortune was followed two years later by Operation PBSuccess, another covert operation in which Castillo Armas played a prominent role. PBSuccess toppled the Árbenz government and ended the Guatemalan Revolution.
