37 Colombian Guerrillas and the CIA's Secret Tally

By Desmond Okafor · September 15, 2026

A secret CIA tally from 1963 kept a count of Colombian revolutionaries trained in Havana, while the names of those targeted for neutralization remained blacked out.

Thirty-seven men left Colombia for the Caribbean and returned as weapons. They were not merely travelers, but assets in a Cuban project to destabilize a hemisphere, and their training transformed them into targets for a government that viewed their education as a death warrant.

This column is drawn from the archive's curated description of the record rather than the original pages. The record, a 45-page memorandum dated March 27, 1963, is a piece of finished intelligence intended to summarize Havana's export of revolution. It arrives five months after the world nearly ended during the Cuban Missile Crisis and two years after the Bay of Pigs disaster—a window of time where the CIA was desperate to prove it could still see into the Caribbean and protect the southern flank of the Americas.

The Precision of the Ledger

The record establishes that the CIA tracked 400 Colombians—citizens of the South American nation bordering Venezuela, Brazil, Peru, and Ecuador—who traveled to Cuba in a single year. But the agency was not interested in the bulk of the group. The record focuses on a specific, lethal subset: "37 are reported to have received training in guerrilla warfare, one in counterintelligence," and one other who "attended a staff or cadre school."

In the trade, there is a profound difference between knowing that people traveled and knowing exactly what they studied in a classroom. Travel manifests and port records can tell you who arrived in Havana, but they cannot tell you who spent six weeks learning how to build a pipe bomb or how to run a dead-drop. The granular precision of these figures—the 37, the one, the one—suggests a level of penetration that goes beyond signal intercepts or embassy chatter.

The desk's reading is that the CIA had a high-level human asset embedded deep within the Cuban training apparatus or the Ministry of the Interior. You do not get a roster of cadre school attendees from a distance. This is the kind of data that comes from a photocopy of a ledger or a whispered briefing from a defector who saw the enrollment lists. The agency wasn't guessing; they were auditing Cuba's investment in Colombian chaos.

Document imagery from nsarchive.gwu.edu From the files: nsarchive.gwu.edu

The Havana Pipeline

The money for this instability flowed from Cuba, the Caribbean island state that had spent the early 1960s attempting to transform Latin America—the cultural region of the Americas where Romance languages prevail—into a network of revolutionary cells. The record names the beneficiaries of this funding: the FUAR and MOEC. These were not mere political clubs, but groups of Colombian revolutionaries and dissident Communists recruited from the lower classes, students, and the unemployed.

By funding FUAR and MOEC, Havana was not just supporting ideology; it was building a proxy army. The record notes that these groups were receiving "Cuban financial support" to facilitate their operations. The connection here is a classic Soviet-style export: the ideology provides the cover, the financial support provides the means, and the training provides the teeth. The CIA saw this pipeline not as a series of isolated incidents, but as a coordinated effort to create a Colombian mirror of the Cuban revolution.

If the shape of this file is what it appears to be, the document is a justification memo. Written in the shadow of the Bay of Pigs, the agency needed to demonstrate a tangible, quantifiable threat to secure funding for expanded regional paramilitary training. By presenting a specific count of "subversives" returning to Bogotá, the CIA was making a case for an aggressive, preemptive counter-insurgency posture. It was not a neutral summary; it was a bill for services rendered and a request for a larger budget to stop the 38th man from ever leaving the airport.

The Bandit Paradox

One of the most telling lines in the record concerns the relationship between the Cuban-backed revolutionaries and the local elements of violence. The FUAR and MOEC were "attempting—without appreciable success to date—to coordinate operations with the bandit gangs terrorizing the violence areas of Colombia."

These "bandit gangs" were the bandoleros, the rural outlaws and warlords who had long plagued the Colombian countryside. The irony here is that the Communist cadres, trained in the sophisticated art of guerrilla warfare in Havana, found themselves unable to shake hands with the homegrown thugs of their own land. The Communists had the theory; the bandits had the terrain. But the gap between them remained unbridged.

The pattern suggests that the United States was running a parallel, undisclosed counter-insurgency operation that utilized these very bandit gangs. The CIA's confidence in the "lack of success" of these coordinations implies that the agency wasn't just watching the failure—they were likely ensuring it. By maintaining influence over the bandoleros or tipping off the Colombian military to any attempted mergers, the US could keep the insurgents isolated. It is a standard play: ensure the ideological enemy cannot find common ground with the local criminal, and the insurgency will starve in the mountains.

The Shape of the Gap

The record we have is a summary, but the original document ran 45 pages, including a detailed annex on Colombia. We see the identification of the threat, but the actual operational response is missing. In the world of Cold War intelligence, a report that identifies 37 trained guerrillas is never the end of the conversation. It is the beginning of a target list.

The desk's reading is that the CIA was operating a surveillance loop in Colombia that bypassed or intentionally excluded the Colombian national intelligence services. The record attributes the travel tracking and the recruit identification exclusively to "CIA efforts." There is no mention of collaboration with Bogotá. This suggests a distrust of the host country's internal security—a belief that the Colombian government was either too porous or too compromised to be trusted with the names of the 37.

If the record is shaped the way it looks, the withheld pages of that 45-page memorandum contain the specific operational responses triggered by the identification of those trainees. In 1963, "handling" a returned subversive rarely involved a courtroom. The pattern suggests the missing pages detail a series of arrests, disappearances, or "neutralizations" designed to prune the Cuban vine before it could take root in the Colombian soil.

Who paid for this silence? The 37 trainees paid with their lives or their freedom, but the cost was also borne by the Colombian state, which became a client of a surveillance apparatus it did not fully control. The CIA did not just track the revolutionaries; they managed the board, using the bandoleros as a shield and the secret rosters of Havana as a sword. The missing pages are protecting the names of the men who carried out the pruning, ensuring that the bridge between intelligence and execution remains blacked out.

37 Colombian Guerrillas and the CIA's Secret Tally

The Precision of the Ledger

The Havana Pipeline

The Bandit Paradox

The Shape of the Gap

Sources