The Bay of Pigs: Operation Zapata, the Brigade, and the Four-Day Failure.

What the Bay of Pigs was, in a paragraph.

The Bay of Pigs invasion was a U.S.-organized covert military operation, executed April 17–20, 1961, in which a force of approximately 1,400 Cuban exiles — designated Brigade 2506 after the serial number of a brigade member killed in training — landed at three beaches on the southern coast of Cuba with the intention of establishing a beachhead, drawing in Cuban government forces, and triggering or providing a flag for a broader anti-Castro uprising. The plan originated in the Eisenhower administration, where its institutional history runs through three sequential designations: an initial inter-agency working framework titled "Operation 40" established in March 1960 to plan covert action against Castro's Cuba; a developed plan titled "Operation Pluto," which envisioned an amphibious landing supported by air strikes against Cuban air assets, originally targeted for the southern Cuban port of Trinidad; and a revised plan titled "Operation Zapata," which shifted the landing site from Trinidad to the Bay of Pigs in the Zapata Swamp region, reduced the visibility of U.S. involvement, and was the version actually executed under the Kennedy administration. President John F. Kennedy, who had inherited the plan three months before its execution and who had approved a final modified version on April 14, 1961, made a series of decisions in the final week — particularly the reduction of the pre-landing D-2 air strikes from full neutralization to a half-strength sortie, and the cancellation of the planned D-Day dawn air strike on April 17 — that the operation's planners would later characterize as decisive in the failure. The brigade landed under fire at Playa Girón (Blue Beach) and Playa Larga (Red Beach) on April 17 against Cuban militia and regular army units that had been on heightened alert since the April 15 air strikes against Cuban airfields. By the evening of April 17, the supporting ships had been driven from the beach area by surviving Cuban T-33 jet trainers and Sea Furies that had not been destroyed in the air strikes. The brigade fought from the beach pocket against increasing Cuban forces for three days. On April 19, with ammunition exhausted and no resupply or air cover possible, brigade commander Pepe San Roman ordered surrender. 114 brigade members were killed; 1,189 were captured and held until December 1962, when they were exchanged for medical supplies and food in a negotiation conducted by James Donovan on behalf of the Kennedy administration. The institutional consequences within the U.S. government were substantial: CIA Director Allen Dulles, Deputy Director for Plans Richard Bissell, and Deputy Director Charles Cabell were progressively forced out over the next year; the President's Foreign Intelligence Advisory Board was reconstituted; the Taylor Commission was convened in April–June 1961 to produce a high-level postmortem; the CIA's own Inspector General, Lyman Kirkpatrick, produced an internal "Survey of the Cuban Operation" (the Kirkpatrick Report) of acid candor; and the Kennedy administration's subsequent Cuba policy — including Operation Mongoose — was organized in part as both a continuation and a structural correction of the institutional failures the invasion had exposed.

The documented record.

Plan history: Operation 40, Operation Pluto, Operation Zapata

The operation's institutional origin is dated to March 17, 1960. Verified On that date, President Dwight D. Eisenhower approved an NSC paper titled "A Program of Covert Action Against the Castro Regime," authorizing the establishment of a Cuban exile political organization, the creation of a propaganda and intelligence apparatus, and the formation of a paramilitary force for action against Cuba. The interagency framework for executing this program was designated "Operation 40" and was lodged within the CIA's Western Hemisphere Division of the Directorate of Plans, led by J. C. King with the active operational direction of Tracy Barnes and, from late 1960, of Richard Bissell, Deputy Director for Plans [1][2].

By summer 1960, the program had developed from a general covert-action framework into a specific paramilitary plan. Verified The early concept envisioned the infiltration of small guerrilla teams into the Cuban Escambray Mountains to support an existing anti-Castro insurgency there. By autumn 1960, the concept had been substantially revised into an amphibious operation with the operational codename "Operation Pluto." The proposed landing site under Pluto was the southern Cuban port of Trinidad, on the south coast at the foot of the Escambray; the plan envisioned heavy pre-landing air strikes against Cuban air assets, a daylight amphibious landing, and the establishment of a beachhead from which the brigade could either be reinforced or, in the event of operational failure, retreat into the Escambray Mountains [3][4].

In late February and early March 1961, in the first weeks of the Kennedy administration, the Trinidad plan was revised at the President's insistence to reduce the visibility of U.S. involvement and the size of the landing footprint. Verified The revised plan, designated "Operation Zapata," shifted the landing site to the Bay of Pigs — a more remote location in the Zapata Swamp region whose physical isolation was considered to reduce the U.S. fingerprint but which also, as the CIA's own planners noted in subsequent reports, eliminated the retreat-to-mountains contingency built into the Trinidad plan. The Zapata plan was approved by President Kennedy in a final form on April 14, 1961, three days before D-Day [5][6].

Brigade 2506

The brigade was recruited from Cuban exiles in Miami beginning in mid-1960 and trained at sites in Florida, Louisiana, Guatemala (principally at Camp Trax in the Sierra Madre near Retalhuleu), and Nicaragua. Verified Its serial-number designation "2506" derived from the assigned number of brigade member Carlos Rodríguez Santana ("Carlyle"), who died in a training fall in Guatemala in September 1960; the brigade adopted his serial as a memorial. At the time of embarkation in mid-April 1961, the brigade numbered approximately 1,400, organized in five infantry battalions, a heavy weapons battalion, and supporting elements including an air arm (Free Cuban Air Force) of approximately 16 B-26 light bombers based at Puerto Cabezas, Nicaragua. The brigade's commander was José "Pepe" Peréz San Román; the political leadership in exile, organized as the Cuban Revolutionary Council, was chaired by José Miró Cardona [3][7].

The April 15 air strikes

The plan called for two pre-landing air strikes by B-26 aircraft of the Free Cuban Air Force, flown from Puerto Cabezas, to destroy Cuban Air Force aircraft on the ground. Verified The first strike, conducted on the morning of April 15, 1961 (D-2), hit three Cuban airfields — Campo Libertad in Havana, San Antonio de los Baños, and Santiago de Cuba — with eight B-26s in three flights. The strike destroyed a portion of Cuba's small operational air force but did not eliminate it: surviving aircraft included T-33 jet trainers, Sea Furies, and additional B-26s that would prove decisive at the beachhead two days later. The strike's effects were limited by the operational doctrine of partial neutralization (rather than full sustained air interdiction) that the revised Zapata plan had adopted to maintain the cover story of a Cuban-Air-Force-defection origin [3][6].

The April 16 cover story collapse and the D-Day strike cancellation

The cover story prepared for the April 15 strike — that the attacks had been conducted by defecting Cuban Air Force pilots — was substantially compromised within twenty-four hours. Verified A B-26 piloted by Mario Zuniga landed at Miami on April 15 in the role of "defecting" Cuban Air Force pilot; press attention to the bullet-hole pattern of the aircraft and the inconsistencies of the cover story rapidly produced public skepticism. At the United Nations on April 15, Cuban Foreign Minister Raúl Roa identified the strikes as a U.S. operation; U.S. Ambassador to the UN Adlai Stevenson, briefed only on the cover story, denied U.S. involvement in remarks he would later characterize as the worst moment of his diplomatic career. On the evening of April 16, with the cover story collapsing and Stevenson protesting the position into which he had been put, President Kennedy approved the cancellation of the planned D-Day (April 17) dawn air strike, which had been intended to destroy the remaining Cuban Air Force assets and to provide air cover for the landing. The cancellation order was transmitted to the Free Cuban Air Force at approximately 0930 on April 17, after the landing had already begun [3][5][6].

The landing and the four-day fight

The brigade began its landing in the early hours of April 17, 1961. Verified The Second Battalion under Hugo Sueiro landed at Playa Larga (Red Beach) at the head of the bay; the Fourth, Sixth, and Heavy Weapons battalions under José Alfredo Pérez San Román landed at Playa Girón (Blue Beach) on the southeast side; the planned diversionary landing at Bahía Honda further west (Green Beach) was not executed. The brigade was opposed at the landing by a combination of Cuban militia units and police initially of platoon and company strength, who were rapidly reinforced by Cuban regular army units and additional militia battalions as the day proceeded [3][7].

The surviving Cuban Air Force aircraft — principally T-33s, Sea Furies, and B-26s — concentrated their attacks on the brigade's supporting ships, the freighters Houston and Río Escondido, both of which were sunk on April 17. Verified The loss of Río Escondido took with it the brigade's communications equipment and a substantial portion of its ammunition reserves. The remaining supply ships, the Caribe and Atlántico, withdrew to sea to avoid further attack; resupply of the brigade ashore became progressively more difficult and, by the second day, effectively impossible [3][6].

Cuban Army and militia forces, under the direct field command of Castro (who had moved to Central Australia, a sugar mill in the Zapata Swamp area, on April 17), pressed the brigade from the north along the two access roads through the swamp. Verified Brigade Second Battalion at Playa Larga held against the initial Cuban advance through the day and night of April 17–18, with substantial Cuban casualties; on April 18 the position became untenable and the Second Battalion withdrew south to consolidate with the main brigade force at Playa Girón. Through April 19 the brigade fought from the Playa Girón perimeter against advancing Cuban armor and infantry, with the brigade's heavy weapons (75mm recoilless rifles, .50 caliber machine guns, 4.2-inch mortars) inflicting losses on the Cuban advance but unable to halt it. By the late afternoon of April 19, ammunition was exhausted and surrender was inevitable. San Román's last message to his command center, transmitted before he destroyed his communications equipment, has been quoted in subsequent accounts as: "I have nothing left to fight with. I am taking to the woods. I cannot wait for you. Tank closing in." [3][7]

The Kirkpatrick Report

CIA Inspector General Lyman B. Kirkpatrick Jr. began an internal review of the operation in May 1961 and completed his "Survey of the Cuban Operation" in October 1961. Verified The report — approximately 150 pages with appendices — was sharply critical of the agency's planning, of the operational direction by Bissell and Tracy Barnes, of the absence of effective coordination with the State Department and Joint Chiefs, of the inadequate intelligence on Cuban capabilities and morale, and of the planners' progressive expansion of the operation from a guerrilla-infiltration concept into an amphibious invasion that the original cover story could not support. The report was classified at the highest level and circulated to a deliberately narrow distribution within the CIA, in part because its findings were politically explosive and in part because Director Allen Dulles and Bissell objected strenuously to its conclusions. Bissell himself prepared a detailed rebuttal. The Kirkpatrick Report's existence was acknowledged in the 1970s but its full text was not declassified until February 1998, when it was released to the National Security Archive at George Washington University under a FOIA request by Peter Kornbluh [8][9].

The Taylor Commission

The Taylor Commission — formally the Cuba Study Group — was constituted by President Kennedy on April 22, 1961 under General Maxwell Taylor, with members including Robert F. Kennedy, Admiral Arleigh Burke (Chief of Naval Operations), and Allen Dulles. Verified The commission heard testimony through April, May, and early June 1961 and delivered a four-part report to the President on June 13, 1961. The report's principal findings were broadly consistent with the Kirkpatrick analysis (inadequate planning, inadequate intelligence, the dilution of the original concept) but framed in terms that emphasized institutional remedies rather than individual indictments. The Taylor report's specific recommendations included the consolidation of paramilitary covert action under the Department of Defense rather than the CIA, the strengthening of inter-agency coordination through what would become the Special Group (Augmented), and a broader reorientation of U.S. Cuba policy. Substantial portions of the Taylor report were released in the 1970s; further material was released through the 1990s [10].

Operation Mongoose and the institutional consequences

The Taylor report's recommendation to strengthen inter-agency Cuba activity produced, in November 1961, the establishment of Operation Mongoose, a much larger covert operation against Castro's Cuba under the political direction of the Attorney General and the operational direction of General Edward Lansdale. Verified Mongoose ran through October 1962, when the Cuban Missile Crisis effectively suspended its more ambitious operations. The CIA leadership changes flowing from the Bay of Pigs were progressive: Dulles resigned in September 1961; Bissell was reassigned to a lesser role in February 1962 and retired later that year; Charles Cabell departed in January 1962. The President's Foreign Intelligence Advisory Board, which Kennedy had abolished in his first weeks in office, was reconstituted on May 4, 1961 as part of the response [10][11]. (Operation Mongoose is covered in our Operation Mongoose case file.)

The prisoner exchange

The 1,189 brigade members captured at the Bay of Pigs were held by the Cuban government and tried as a group in March 1962. Verified Negotiations for their release, conducted on the U.S. side by attorney James B. Donovan (who had earlier negotiated the Powers-Abel spy exchange), produced an agreement in December 1962 under which the prisoners were exchanged for $53 million in food, medical supplies, and pharmaceuticals raised through private fundraising. The released brigade members arrived in Miami on December 23, 1962; Kennedy met with the brigade at the Orange Bowl on December 29, 1962, where the brigade flag was presented to him [12].

The continuing record release

Records relating to the Bay of Pigs have been released in stages through the JFK Records Act and parallel FOIA processes. Verified The CIA's own internal four-volume "Official History of the Bay of Pigs Operation," prepared by Jack Pfeiffer between 1973 and 1984, was released in 2011 (Volumes I–III) and 2016 (Volume IV). Continued JFK Records Act releases through 2017–2018 and into the 2022 and 2025–2026 release cycles have added additional documents. The CIA's "Cuba Project" history, partial Pentagon and State Department records, and continuing FOIA-driven releases mean that the documentary record on the operation remains active even sixty-five years after the events [9][13].

The contending readings of why the operation failed.

Reading: Kennedy's withheld air cover

Argument: the operation would have succeeded if President Kennedy had not cancelled the D-Day dawn air strike on April 16 and had committed U.S. military air cover when the operation began to fail on April 17–18. The brigade was overrun because the surviving Cuban Air Force was permitted to operate against the supporting ships; the supporting ships withdrew because Kennedy refused to authorize U.S. Navy air cover. Held by Brigade 2506 veterans, by Richard Bissell (in his subsequent memoir Reflections of a Cold Warrior, 1996), by Howard Hunt, and by elements of the anti-Castro Cuban exile community throughout the 1960s and 1970s. Claimed

Limits: The argument is correct on the immediate causal chain (the D-Day cancellation did make the supporting-ship loss more likely; the absence of subsequent air cover did contribute to the brigade's defeat). It is less compelling as an argument about whether the operation could have succeeded had the air cover been provided, because the underlying premise — that the landing would have triggered a general anti-Castro uprising once the beachhead was secured — was, on the available intelligence, substantially overstated. The Kirkpatrick Report, the Pfeiffer official history, and subsequent historiography (Peter Kornbluh's Bay of Pigs Declassified, 1998; Howard Jones's The Bay of Pigs, 2008) all conclude that the planning's deep flaw was the assumption of a triggered uprising, and that an air-cover correction would have prolonged the engagement without reversing the political outcome.

Reading: The plan was structurally unsound

Argument: the operation's failure was institutional rather than tactical. The CIA's covert-action culture in the 1958–1961 period had developed an operational style — carried over from Operation TPAJAX (1953, Iran) and Operation PBSUCCESS (1954, Guatemala) — in which the agency assumed that an under-resourced operation could be made to work through manipulation of local political dynamics. The Bay of Pigs failed because that operational style was inadequate to the actual Cuban political reality, which (a) had been consolidated by Castro to a degree the agency's intelligence did not appreciate; (b) included a substantial militia structure that could rapidly contain a beachhead; (c) had no remaining serious anti-Castro political infrastructure on the island to be activated. Held by Kornbluh, by Jones, by the agency's own Pfeiffer history, and by the bulk of the academic literature. Claimed

Limits: The reading is supported by the documentary record. Its limit is that it does not foreclose the possibility that a substantially larger U.S. military intervention (which Kennedy would not authorize) might have produced a different political outcome; that counterfactual is a separate question.

Reading: The Trinidad-to-Zapata shift was decisive

Argument: the operation as designed for Trinidad — with retreat-to-mountains contingency and a more populated landing area in which an uprising could have been more plausibly triggered — might have produced different outcomes; the shift to the isolated Zapata Swamp eliminated the retreat option and placed the brigade in a position from which only a triggered general uprising could produce success. Held by some CIA planning veterans in their subsequent recollections, including E. Howard Hunt. Claimed

Limits: The reading captures one element of the planning failure but does not address the underlying intelligence question of whether any Cuban landing in April 1961 would have triggered a general uprising. The contemporary CIA estimates that posited a high probability of such an uprising are now generally regarded as unsupported by the actual political conditions on the island.

The unanswered questions.

The Mafia angle

The CIA's parallel anti-Castro assassination plotting under Operation Mongoose involved contacts with organized-crime figures — Sam Giancana, Santo Trafficante Jr., John Roselli — that the Church Committee documented in its 1975 interim report on assassination plots against foreign leaders. Claimed Whether and to what extent these contacts existed in the pre-Bay-of-Pigs period (1960–early 1961) and whether they affected the operation's planning is partially documented; the records are not complete and the institutional posture of the CIA has been to acknowledge contacts with Roselli specifically from August 1960 onward while characterizing them as separate from the Bay of Pigs operational planning [11][14].

The full Pfeiffer Volume IV

The Pfeiffer official history's fourth volume — on the agency's own internal response to the operation's failure and to the Kirkpatrick Report — was the most internally contested volume and was released only in 2016 after a sustained National Security Archive FOIA challenge. Disputed Subsequent FOIA work has identified continuing redactions in Volume IV that the agency has resisted releasing; whether further releases would substantively alter the institutional reading is unclear [9][13].

The "what if Kennedy had committed U.S. forces" counterfactual

The records of the April 18–19 discussions between President Kennedy, Secretary of Defense Robert McNamara, Joint Chiefs of Staff Chairman Lyman Lemnitzer, and Admiral Burke, in which the question of committing U.S. Navy aircraft was decided in the negative, have been partially released. Claimed The contemporaneous decision-process records are more fragmentary than later reconstructions have made them appear; the question of what Kennedy actually committed to provide, what he declined to provide, and what his contemporary state of mind was on the air-cover question is partially obscured by the subsequent political reconstruction of the events on both sides [3][6][11].

The brigade casualty record

The brigade's own roster, casualty list, and post-capture experience are documented principally in the records of the Brigade 2506 Veterans Association in Miami and in the Cuban Government's published records of the post-invasion trials. Verified The two records substantially agree on the headline numbers (114 brigade members killed, 1,189 captured) but differ in detail on individual cases. The Cuban casualty count from the invasion (Cuban militia, regular army, and civilians) has been variously given as approximately 4,000 (the early Cuban announcement), as approximately 2,000 (later Cuban records), and as approximately 1,800 (later U.S. estimates); the precise count remains disputed [3][7][15].

The post-invasion intelligence assessments

The CIA's revised intelligence assessment of the Cuban political situation in the immediate aftermath of the invasion — what the agency now thought it had got wrong about the prospects for an uprising — is partially documented in the Pfeiffer history and in subsequent releases but is not comprehensively reconstructed in the public record. Unverified Whether the agency's intelligence assumptions changed in a structural way as a result of the failure, or whether the same assumptions were carried forward into Operation Mongoose, is the question that Mongoose's own subsequent failures partially answer.

Primary material.

The accessible primary record on the Bay of Pigs is held at:

• The John F. Kennedy Presidential Library and Museum in Boston holds the Kennedy administration's NSC files, the Special Group (Augmented) records, the Taylor Commission supporting documents, and the post-invasion correspondence.
• The Dwight D. Eisenhower Presidential Library and Museum in Abilene holds the March 17, 1960 authorization and the pre-Kennedy planning documents.
• The CIA's FOIA Reading Room hosts the Pfeiffer official history (Volumes I–IV) and the Kirkpatrick Report in its 1998 declassified form.
• The National Security Archive at George Washington University hosts a consolidated Bay of Pigs collection including the Kirkpatrick Report, Pfeiffer history, and supporting documents; under the curation of Peter Kornbluh.
• The National Archives (NARA) JFK Records Collection hosts the records released under the JFK Records Act, with continuing additions through the 2025–2026 release cycle.
• The Brigade 2506 Veterans Association in Miami maintains the brigade's own roster, oral-history project, and museum collection.

Critical individual documents include: the March 17, 1960 NSC authorization; the Kirkpatrick Report (October 1961, declassified February 1998); the Taylor Commission report (June 13, 1961); the four-volume Pfeiffer "Official History of the Bay of Pigs Operation" (released 2011–2016); the post-invasion Special Group (Augmented) records leading into Operation Mongoose; and the December 1962 prisoner-exchange agreement.

The sequence.

1. January 1, 1959 Castro's forces enter Havana; Batista flees.
2. March 17, 1960 Eisenhower approves "A Program of Covert Action Against the Castro Regime"; Operation 40 begins.
3. Summer 1960 Concept develops from infiltration to amphibious operation; "Operation Pluto" targeting Trinidad.
4. September 1960 Brigade 2506 named after the death of Carlyle Rodríguez Santana in training in Guatemala.
5. January 20, 1961 Kennedy inaugurated.
6. Late February–Early March 1961 Plan revised to "Operation Zapata"; landing site shifted to Bay of Pigs.
7. April 14, 1961 Kennedy gives final approval.
8. April 15, 1961 (D-2) First B-26 strikes against Cuban airfields; partial neutralization.
9. April 15–16, 1961 Cover story collapses at the United Nations; Stevenson denies U.S. involvement in good faith.
10. Evening April 16, 1961 Kennedy cancels the D-Day dawn air strike.
11. April 17, 1961 Landing at Playa Girón and Playa Larga; Houston and Río Escondido sunk.
12. April 18–19, 1961 Brigade fights from the perimeter; resupply impossible; Cuban Army closes in.
13. April 19, 1961 (late afternoon) San Román orders surrender. 114 brigade members killed; 1,189 captured.
14. April 22, 1961 Taylor Commission constituted.
15. May 4, 1961 President's Foreign Intelligence Advisory Board reconstituted.
16. June 13, 1961 Taylor Commission report delivered to Kennedy.
17. September 1961 CIA Director Allen Dulles resigns.
18. October 1961 Kirkpatrick Report completed.
19. November 30, 1961 Operation Mongoose authorized.
20. February 1962 Richard Bissell reassigned.
21. March 1962 Cuban trial of brigade prisoners.
22. December 23, 1962 Brigade prisoners released and arrive in Miami.
23. December 29, 1962 Kennedy meets brigade at Orange Bowl; brigade flag presented.
24. February 1998 Kirkpatrick Report declassified.
25. 2011 Pfeiffer "Official History" Volumes I–III released.
26. 2016 Pfeiffer "Official History" Volume IV released.
27. 2017–2026 Continuing JFK Records Act releases.

Cases on this archive that connect.

Operation Mongoose (File 026) — the successor covert program against Castro's Cuba, authorized in November 1961 as both a continuation of and a structural response to the Bay of Pigs failure.

The JFK Assassination (File 006) — the November 22, 1963 event whose subsequent record releases under the JFK Records Act have included substantial Bay-of-Pigs-period material. The two cases are linked institutionally through Kennedy's relationship with the agency in the period between the Bay of Pigs and his death.

Operation Northwoods (File 003) — the 1962 Joint Chiefs proposal for staged provocations to justify U.S. military action against Cuba. Northwoods, Mongoose, and the Bay of Pigs together represent the institutional Cuba-policy posture of the early Kennedy administration.

More related files coming as the archive grows. Planned: standalone files on Operation TPAJAX (1953, Iran), Operation PBSUCCESS (1954, Guatemala), the Cuban Missile Crisis, and the Church Committee.

Full bibliography.

1. National Security Council, "A Program of Covert Action Against the Castro Regime," approved by President Eisenhower March 17, 1960. Held at the Dwight D. Eisenhower Presidential Library; included in FRUS 1958–1960 Volume VI: Cuba.
2. U.S. Department of State, Foreign Relations of the United States, 1958–1960, Volume VI: Cuba, Government Printing Office, 1991.
3. Pfeiffer, Jack B., Official History of the Bay of Pigs Operation, four volumes, CIA, 1973–1984. Volumes I–III released 2011; Volume IV released 2016. CIA FOIA Reading Room and National Security Archive.
4. U.S. Department of State, Foreign Relations of the United States, 1961–1963, Volume X: Cuba, 1961–1962, Government Printing Office, 1997.
5. Schlesinger, Arthur M. Jr., A Thousand Days: John F. Kennedy in the White House, Houghton Mifflin, 1965. Contemporary insider account.
6. Sorensen, Theodore C., Kennedy, Harper & Row, 1965. Companion insider account.
7. Brigade 2506 Veterans Association, oral history collection and museum archive, Miami. Includes brigade roster and post-capture testimony.
8. Kirkpatrick, Lyman B. Jr., "Survey of the Cuban Operation," CIA Inspector General, October 1961. Declassified February 1998. Released to the National Security Archive.
9. Kornbluh, Peter (ed.), Bay of Pigs Declassified: The Secret CIA Report on the Invasion of Cuba, The New Press, 1998. The Kirkpatrick Report with editorial apparatus.
10. Taylor, Maxwell D., "Memorandum for the President: Report of the Cuba Study Group," June 13, 1961. Held at the John F. Kennedy Presidential Library.
11. Senate Select Committee to Study Governmental Operations with Respect to Intelligence Activities (Church Committee), Alleged Assassination Plots Involving Foreign Leaders, Interim Report, November 20, 1975.
12. Donovan, James B., personal papers on the December 1962 Cuban prisoner exchange. Held at the John F. Kennedy Presidential Library.
13. National Archives and Records Administration, JFK Records Collection, continuing release tranches 2017–2026.
14. Bissell, Richard M. Jr. (with Jonathan E. Lewis and Frances T. Pudlo), Reflections of a Cold Warrior: From Yalta to the Bay of Pigs, Yale University Press, 1996.
15. Jones, Howard, The Bay of Pigs, Oxford University Press, 2008.