The Cuban Missile Crisis: ExComm, DEFCON Alerts, and the Risks of Accidental Nuclear War

Deliberation and the Formation of the ExComm

• The Kennedy administration faced a variety of options regarding the presence of Soviet missiles in Cuba, ranging from diplomacy and do-nothing approaches to active military measures such as air strikes and naval blockades.

• Evaluation of merits:

  • Diplomacy and doing nothing had the merit of potentially avoiding World War III.

  • However, these options carried significant political consequences for the administration.

  • Military options might successfully remove the missiles but carried the extreme risk of initiating a global nuclear conflict.

• Because every option was flawed, the administration was forced to choose between "imperfect options."

• To handle this crisis, President Kennedy convened a group of key advisors known as the Executive Committee of the National Security Agency, commonly referred to as the ExComm (or Ex Com).

• The composition of the ExComm was fluid and ever-changing, including:

  • Military officials.

  • Government representatives.

  • Political advisors.

  • Consultative experts brought in from outside the government.

The Policy of Quarantine and the Public Relations Battle

• The United States ultimately decided to impose a "quarantine" on Cuba.

• Top Secret Documentation: The speaker references a previously top-secret American document from 1962 illustrating the deployment of American ships at the start of the crisis.

  • The ships were deployed in an arc to the north and east of Cuba.

  • The naval presence included aircraft carriers, amphibious vessels, destroyers, landing craft, and subsurface submarines (SS).

• The quarantine policy dictated that no weapons would be allowed into Cuba. The American Navy prepared to stop and search any ship heading for Cuba to inspect for contraband.

• Defining the Quarantine vs. Blockade:

  • International law identifies a blockade as an act of war.

  • The speaker argues that logically and legally, there is no substantive difference between a quarantine and a blockade.

  • The humorous distinction provided: "The word quarantine starts with the letter q, and there are no q's in the word blockade."

• The choice of terminology was centered on a public relations (PR) battle:

  • The Americans wished to soften the appearance of their policy to avoid being labeled as aggressors or pirates.

  • The Soviets argued the Americans were acting like pirates by stopping ships in international waters.

  • The Americans used the platform to label the Soviets as liars for placing missiles in Cuba in the first place.

Execution of the Quarantine and Intentional Restraint

• Scope of the Quarantine:

  • The Americans initially stated they would only stop vessels suspected of carrying weapons (‘contraband’).

  • This meant cargo ships were targeted while tanker ships (carrying oil) were typically bypassed.

• Symbolic Action:

  • Only a very small number of ships were actually stopped and searched.

  • Most searches were cursory and symbolic, designed to send a message of resolve rather than to conduct exhaustive inspections.

  • The quarantine was primarily a threat used as a signaling device to the Soviets.

• Retaliation Doctrine:

  • President Kennedy stated on national television that any missile launched from Cuba would be treated as a Soviet launch against the United States.

  • This policy meant that the U.S. would retaliate against the Soviet Union itself, effectively triggering World War III.

The DEFCON System and Global Alert Status

• DEFCON stands for "Defense Condition."

• There are five levels of DEFCON:

  • Level 5: Normal readiness/"just a regular day."

  • Level 3: Increased readiness; the military is in a serious situation and preparing for potential conflict.

  • Level 2: High readiness; the step immediately preceding active war/Level 1. Only one part of the military reached this level during the crisis.

  • Level 1: Maximum readiness (war has not necessarily started, but is imminent upon presidential order).

• October 22: The American military officially moves to DEFCON 3.

• Regional Discrepancies (Europe):

  • Loris Norstad, the Supreme Allied Commander of NATO, met with British Prime Minister Harold Macmillan.

  • Macmillan argued that moving to DEFCON 3 in Europe would be seen as overly provocative by European governments, who were terrified of a war being fought on their soil (e.g., Russian tanks rolling through West Germany or France).

  • Norstad requested and received permission from the Joint Chiefs of Staff to exclude European forces from the worldwide alert to maintain a "chill" atmosphere.

• Communication Breakdowns:

  • Despite the exception for Europe, some service commanders (specifically the Air Force) ordered subordinates to move to DEFCON 3.

  • Senior American and British commanders in Europe used their individual discretion to put their units on alert anyway, creating a fragmented and confusing alert status.

The Canadian Dimension and the Unitary Actor Theory

• The United States requested that Canada, as an ally, support the alert by putting Canadian forces on DEFCON 3.

• Prime Minister John Diefenbaker (a Conservative) initially refused, partly due to a personal dislike of President Kennedy and a desire not to be dictated to by the Americans.

• Discord in the Canadian Cabinet:

  • While Diefenbaker said "no," the Minister of National Defense (Douglas Harkness, though not named explicitly in transcript) quietly ordered military commanders to go on alert.

• Theoretical Application:

  • This is a direct challenge to the IR theory of "States as unitary rational actors."

  • It demonstrates that state actions are often the result of internal disagreements and individuals acting on their own convictions. Members of the defense establishment genuinely believed the Prime Minister was making a mistake and subverted his orders.

Strategic Air Command (SAC) and the Reach of DEFCON 2

• The Strategic Air Command (SAC) was responsible for ballistic missiles (ICBMs) and long-range bombers.

• The commander of SAC (General Thomas Power, implied) moved his forces to DEFCON 2.

• Signaling to the Soviets:

  • The alert for DEFCON 2 was broadcast "in the clear" (not in code) over the radio.

  • This was done to accelerate the process and ensure the Soviets were listening and understood that the U.S. was preparing for any eventuality.

  • It served as a warning: "Don't [mess] with us."

Technological Risks: The Minuteman Transition and Launch Safety

• During the crisis, the U.S. was upgrading its ICBM fleet from liquid-fueled Atlas and Titan missiles to higher-performing, solid-fueled Minuteman ICBMs.

• Safety Protocols (The "Quad Key" System):

  • Standard procedure required two people in a silo to turn keys simultaneously (Dual Key).

  • In addition, those two keys had to be paired with two people in a separate silo also turning their keys.

  • Total requirement: 4 people must agree to launch.

• The "Jury-rigged" Scenario:

  • One Minuteman silo was operational, but its matching pair silo was still under construction.

  • Because of the urgency of the crisis and the state of DEFCON 2, commanders "MacGyver'd" or jury-rigged the system to allow the single operational silo to fire without the full traditional safety pair in place.

  • This decreased the resilience and safety of the nuclear launch system.

Atmospheric Tension: The Vandenberg Missile Test

• October 26: At the height of the crisis, the U.S. conducted a test launch of an Atlas ballistic missile from Vandenberg Air Force Base in California.

• The missile was fired toward Kwajalein Atoll in the Pacific and was a success.

• Potential for Catastrophe:

  • Vandenberg was a test base that was also designed to be converted into an active operational base during emergencies.

  • If Soviet intelligence had observed the launch, they might have easily misinterpreted it as the start of a nuclear strike against the USSR, launched from a newly operational base.

• The speaker notes that Soviet intelligence was often "hit or miss" or "brutally incompetent," and the world may be lucky they simply did not notice the test.

Naval Confrontations and the Risk of Accidental Nuclear War

• The Soviets sent four submarines to the Caribbean to support their ships crossing the quarantine line.

• Practice Depth Charges (PDC):

  • The American Navy dropped "signaling depth charges" (also called practice depth charges) to let the Soviet submarines know they were being followed.

  • These are described as "big firecrackers" that create a loud noise/thud to signal the sub but are too small to damage the hull or scratch the paint.

• The Pressure of Command:

  • Soviet commanders were under immense stress, trapped deep underwater with limited communication.

  • Accounts released decades later suggest at least one Soviet commander (likely Vasili Arkhipov's sub, though not named) believed World War III had already started and they were being attacked with real depth charges.

• The Special Torpedo:

  • Each of the four Soviet submarines was equipped with a single "special torpedo" featuring a nuclear warhead.

  • The commanders considered using these nuclear weapons against the American fleet.

• The debate persists on whether these stories are "spinning yarns" by old soldiers or a true record of how close the world came to accidental nuclear war.

Questions & Discussion

• Question: What is the difference between a quarantine and a blockade? Is a blockade where you don't let anything into the country?

• Answer: A blockade can be selective (some products/ships) or comprehensive (everything). The difference in name between quarantine and blockade was purely linguistic and used for PR and international law maneuvering; they are functionally identical.

• Question: Did renaming the blockade to a "quarantine" actually work?

• Answer: It depended on your alliance. Friends of the Americans accepted the distinction; the Soviets and their allies called it piracy and a violation of international law. Few minds were changed by the name change.

• Question: Is sending a message this way a waste of resources? For example, when Donald Trump sent the Navy to the Persian Gulf.

• Answer: No, because signaling strength is a vital part of diplomacy and deterrence. It shows the opponent that the threat of escalation is real. Even if the current actions are symbolic, they could become real very quickly.

• Question: (Via Chat) Are they the same thing?

• Answer: Yes, exactly the same. Both can be selective or comprehensive. It is just two terms for the same act of stopping ships.