Overview
After the Bay of Pigs, the question in Washington was not whether to move against Castro again but how. The answer, authorised in November 1961, was Operation Mongoose: a covert programme of sabotage, infiltration, propaganda and economic disruption run out of a Pentagon task force under Brigadier General Edward Lansdale, with CIA Director John McCone and William Harvey's Task Force W supplying the operational side, and Robert Kennedy pressing the whole thing forward through the Special Group Augmented.
It ran into early 1963 and it did not work. What survives is the paperwork, and the paperwork is remarkable less for the sabotage than for the sheer range of what got written down.
The Range of What Was Considered
Mongoose generated proposals at every level of seriousness. Some were straightforward acts of war by other means: blowing up bridges and rail links, burning cane, disrupting the sugar harvest. Lansdale added a task in January 1962 to incapacitate sugar workers during the harvest using chemical means — non-lethal agents, he later testified, intended to keep people out of the fields for a day or two without lasting effect.
Others were stranger. The Church Committee's 1975 accounting of the period catalogued exploding seashells placed where Castro dived, a contaminated diving suit, poisoned cigars, and a series of approaches to organised crime figures. The programme has become a standing example of what a well-resourced covert apparatus produces when it is told to solve a political problem and given no acceptable way to fail.
Starshells
The scheme that has outlived all the others was described to the Senate in 1975 by Thomas Parrott, who had served as secretary to the Special Group, and who was plainly recounting it as an example of Lansdale's judgement rather than as a plan he admired.
The idea was to spread word through Cuba that the Second Coming of Christ was imminent, and that Christ was against Castro, who was anti-Christ. A date would be given. At the appointed hour there would be a manifestation. And, in Parrott's telling, "just over the horizon there would be an American submarine which would surface off of Cuba and send up some starshells" — the sign itself — after which the population would rise and Castro would fall.
Parrott closed the account with the detail that fixed it in memory: "some wag called this operation — and somebody dubbed this — Elimination by Illumination."
In some later retellings the plan acquires further furniture: aircraft above the cloud layer broadcasting a voice, or an actor coming ashore. The Senate record itself contains the core — the rumour campaign, the submarine, the starshells, the nickname — attributed to a witness who was quoting it back at his questioners with open sarcasm.
It Did Not Happen
No submarine surfaced. No starshells were fired. The scheme belongs to the category of things proposed inside Mongoose and not executed, and the Church Committee recorded it as an illustration of the programme's atmosphere rather than as an operation.
That distinction is regularly lost. The plan circulates widely in a form that has it carried out, and sometimes in a form that transplants it — the claim that the technique was used on American troops appears in some accounts, which reverses both the target and the outcome. The National Security Archive's own published Mongoose briefing book, drawn from the declassified operational record, contains no religious deception programme at all; the story survives because a Senate witness told it under oath, not because it appears in the operational files.
Why It Matters Anyway
A plan that was never executed would ordinarily be a footnote. This one is not, for two reasons.
The first is that it is documented. Whatever else is arguable about Cold War covert action, this specific idea — using a manufactured religious event to topple a government — was raised at a level close enough to power that it reached the Attorney General's circle and, thirteen years later, a Senate committee. That is a matter of public record, in a federal report, from testimony.
The second is what it does to the plausibility of everything downstream. A great deal of later conspiracy writing turns on the premise that governments would consider staging a supernatural or celestial event to move a population. Mongoose supplies a real instance of exactly that premise being entertained, by real officials, about a real country. The scale is nothing like the versions that came later. But the shape is the same, and the shape is in the archive.
Legacy
Mongoose ended without achieving its object, and its most enduring product turned out to be documentary. The 1975 interim report that recorded Elimination by Illumination did so in a footnote, in the middle of a chapter about assassination, in the tone of a committee that had heard a great deal that month and was no longer easily surprised.