CINCLANT Message to Joint Chiefs of Staff, "Proposed Leaflet," 20 October 1962, Top Secret.

Source: CINCLANT Message to Joint Chiefs of Staff, "Proposed Leaflet," 20 October 1962, Top Secret. Date: Oct 20, 1962 Archive: MDR release from U.S. Navy "Blue Flag Messages," U.S. Navy Heritage and History Command Archives Collection: The Cuban Missile Crisis at 55 Oct 16, 2017

Editorial Analysis

Original analysis by the DriftSeas editorial desk. The complete primary-source document, transcribed from the National Security Archive scan, appears in full below.

A Leaflet Before the Storm

On 20 October 1962 the U.S. Atlantic Fleet’s commander (CINCLANT) sent a top‑secret draft to the Joint Chiefs of Staff proposing a propaganda leaflet to be dropped over Cuba. The memo is a direct product of the frantic “October Crisis” that had already seen Soviet missiles installed on the island and U.S. forces placed on heightened alert. By the time the message was typed, President Kennedy’s administration was still weighing a range of options—from diplomatic pressure to a full‑scale invasion. The proposed leaflet reflects a very specific, intermediate step: a psychological‑operations (PSYOP) warning that would accompany, or perhaps precede, the execution of OPLAN 312‑62, a contingency plan for a limited amphibious invasion of Cuba.

The document’s format is typical of Cold‑War naval communications: a terse header, a list of distribution points (including the 18th Airborne Corps and the CG War‑Fighter Center at Fort Bragg), and a final “REQUEST APPROVAL” line. The text of the leaflet itself is stark, warning Cuban civilians that “everything that moves is a target” and that U.S. forces will take “temporary charge of your country” to prevent “prolonged shedding of blood.” The language is deliberately blunt, designed to shock the population into staying away from military targets while signaling that the United States intended to intervene only to restore order, not to occupy permanently.

The Crisis Context

The memo arrived three weeks after the discovery of Soviet medium‑range ballistic missiles in Cuba (mid‑October 1962) and a week before the world‑wide quarantine that Kennedy announced on 22 October. At that moment, the United States had three viable courses: diplomatic negotiations, a naval blockade (the “quarantine”), or a limited strike/invasion. The Navy’s OPLAN 312‑62, referenced in the memo, was the operational plan for a swift amphibious assault backed by airborne and naval air power. Earlier leaflets, approved for use only after U.S. forces had landed, were intended to reassure civilians that the fighting was over. This draft, however, anticipates a pre‑invasion psychological shock‑wave, suggesting that planners were already rehearsing a scenario in which the invasion would be launched without a prior diplomatic breakthrough.

The actors listed in the distribution chain reveal who was expected to execute the plan. The 18th Airborne Corps, a rapid‑deployment unit, was earmarked to seize key airfields; the CG War‑Fighter Center at Fort Bragg would provide close‑air support; the Joint Chiefs’ “SACSA” (Strategic Air Command staff) and “CJCS‑3” (Operations) signatures indicate that the highest echelons were being consulted. The presence of the Chief of Naval Operations (CNO) in the routing list underscores the Navy’s central role in the amphibious component.

Reading Between the Lines

While the leaflet’s wording is overtly threatening, the memo’s procedural tone hints at internal debate. The phrase “PROPOSED LEAFLET … REQUEST APPROVAL” shows that the document was still a draft, subject to revision or rejection. The fact that it was circulated to both Army and Air Force components suggests a joint‑service consensus was being sought, not a unilateral naval initiative. Moreover, the reference to “CURRENTLY APPROVED LEAFLETS … ARE TIMED FOR DROP AFTER U.S. FORCES ARE ON GROUND” indicates that the existing psychological‑operations plan was already in place for post‑invasion use; this new draft was an ad‑hoc addition, likely spurred by the accelerating timeline of the crisis.

The memo’s urgency—marked “OP IMMEDIATE”—and the precise time stamp (1745 Z on 20 Oct) illustrate how rapidly the Pentagon was moving documents through the chain of command. The inclusion of a “SCP‑3” code (presumably a security classification or internal reference) and the elaborate distribution list reflect the tight control over information, even as the administration publicly projected a measured, diplomatic stance.

Legacy of the Leaflet Draft

The leaflet never saw the light of day; the quarantine was chosen instead, and a full‑scale invasion was averted. Yet the document remains a vivid illustration of how close the United States came to a kinetic conflict with Cuba. It reveals that, beyond the public narrative of a calm, measured response, military planners were already preparing concrete measures to influence civilian behavior on the ground—measures that would have deepened the humanitarian impact of any invasion.

For historians, the memo is a rare glimpse into the operational mindset of the Joint Chiefs during the hottest days of the Cold War. It underscores the interplay between strategic decision‑making in the White House and the tactical preparations of the services. The draft also anticipates modern PSYOP doctrine: use of targeted messaging to shape civilian perceptions before kinetic action. In an era when the specter of nuclear war loomed, the United States was simultaneously rehearsing conventional, ground‑level operations that could have produced massive casualties.

The declassification of this message in 2017 adds texture to the already complex picture of the Cuban Missile Crisis. It reminds us that the crisis was not only a diplomatic standoff but also a near‑miss of a conventional war that could have spiraled into a nuclear exchange. The leaflet draft, with its stark warning and promise of temporary U.S. governance, stands as a testament to how close the world came to witnessing a different kind of Cold‑War battlefield.

NAVAL MESSAGE
TOP SECRET
NAVY DEPARTMENT
PRECEDENCE (ACTION)
OP IMMEDIATE
OP IMMEDIATE (INFO)
RELEASED BY
DRAFTED BY
EXT. NO.
CORRECTED COPY CORRECTION UNDERLINED

O 201516Z
FM CINCLANT
TO RUECW/JCS

INFO RUEADX/CINCAFLANT
RUCRC/CINCARLANT
RUCBCR/CG SP WARFARE CENTER, FT BRAGG
RUCBCR/CG EIGHTEENTH AIRBORNE CORPS, FT BRAGG
JACE

TOP SECRET

PROPOSED LEAFLET

1. CURRENTLY APPROVED LEAFLETS FOR DROP OVER CUBA IN
EVENT OF IMPLEMENTATION OF CINCLANT OPLANS 314-61 AND 316-61
ARE TIMED FOR DROP AFTER U.S. FORCES ARE ON GROUND. FOLLOWING
LEAFLET IS PROPOSED FOR DROP ON DIRECTIVE AFTER CINCLANT OPLAN
312-62 IS IMPLEMENTED:

"NOTICE --- THE ARMED FORCES OF THE UNITED STATES ARE
DESTROYING THE MILITARY POWER OF CASTRO AND THE COMMUNISTS.
STAY AWAY FROM MILITARY TARGETS. REMAIN AT HOME. EVERYTHING
THAT MOVES IS A TARGET. WITHIN THE NEXT FEW DAYS U.S. ARMED
FORCES WILL TAKE TEMPORARY CHARGE OF YOUR COUNTRY. THIS
ACTION IS TAKEN ONLY TO AVOID PROLONGED SHEDDING OF BLOOD AND
DESTRUCTION OF PROPERTY. AS SOON AS ORDER IS REESTABLISHED
AND A RESPONSIBLE ELEMENT TAKES CHARGE OF YOUR GOVERNMENT,
THE ARMED FORCES OF THE UNITED STATES WILL BE WITHDRAWN."
REQUEST APPROVAL.

SCP-3.

JCS(SACSA)....ACTION CJCS-3 DJS-3 SJCS-1 J3-2 J5-2 FILE-1.......(1-12) bjw

CSA(13-14) CSAF (15-16) CMC (17-18) CNO(19-20)

EXCLUSIVE DISTRIBUTION
CORRECTION PER ORIGIN SVC
CNO...FLAGPLOT(19)..00 VIA 943T4(20)
201516Z 17/23/62 ADV COPY DLVD TO JCS /WF/2
REPRODUCTION OF THIS DOCUMENT IN WHOLE OR IN PART IS PROHIBITED EXCEPT WITH PERMISSION OF ISSUING OFFICE
CONTROL NO
11414/RF/4
CIRCUIT NO
D339
PAGE
1
OF
PAGES
1
TIME OF RECEIPT
1745Z 20 OCT
DATE TIME GROUP
201516Z OCT 62

TOP SECRET
(When filled in)

FILE

DECLASSIFIED IN FULL
Authority: EO 13526
Reviewed by DON/AA DRMD
Date: MAY 23 2017