Brinkmanship: Kennedy & Khrushchev

The Art of the Probabilistic Threat

The term "brinkmanship" is often used loosely to mean being reckless or pushing things to the edge. In strategic studies, however, it has a more precise meaning, largely developed by the Nobel laureate Thomas Schelling.

At its core, brinkmanship is not about making a direct threat you might not want to carry out (like "withdraw or I'll launch a nuclear war"). As we saw in the last lesson with Subgame Perfect Equilibria, such a threat might not be credible. Instead, brinkmanship is about manipulating a shared risk. It's the art of creating a situation where there is a non-zero, and increasing, chance that things could spiral out of control, leading to a disastrous outcome for everyone.

To get a clearer sense of this strategic logic, let's start with a foundational text that explains Schelling's idea.

The key idea from the reading is this: brinkmanship is a strategy where you "lose control over the realization, while controlling the probability." You aren't threatening to drive off the cliff yourself; you're threatening to start driving along the cliff's edge on a slippery road, hoping the other driver gets scared and turns away first. The threat becomes credible because disaster can happen by accident, not because you have to rationally choose it.

This connects directly to the Game of Chicken we discussed. Brinkmanship is the tactic one uses to win the game. It’s a "competition in risk-taking," where the winner is the one who can best convince the other they are more willing to tolerate the risk of mutual destruction.

Kennedy's Quarantine: A Case Study in Brinkmanship

President Kennedy's decision on October 22nd to implement a naval "quarantine" rather than launching an immediate air strike is a masterful example of brinkmanship in practice.

An air strike would have been a direct, irreversible act of war, immediately forcing a Soviet response. A quarantine, however, was a more ambiguous and incremental move. It didn't start a war, but it created a situation where a war could easily start.

The following video describes the announcement and implementation of the quarantine.

The quarantine was not a simple blockade. It was a carefully calibrated instrument of risk.

• It created a slippery slope: By placing US warships in the path of Soviet vessels, Kennedy initiated a process whose outcome he could not fully control. A local commander on either side could misinterpret an order, a sonar contact could be mistaken for a submarine, or a ship could refuse to be boarded, forcing an escalation.
• It involved a 'controlled loss of control': As the Dixit et al. paper points out, the political leadership in Washington wanted a "softer" process than standard naval procedure, but the Navy often followed its own book. This gap between political intent and bureaucratic/military procedure is a key source of the 'accidental' risk that makes brinkmanship work. Your experience in the Civil Service will give you a keen appreciation for how such gaps between policy and implementation can arise.
• It was a probabilistic threat: Kennedy was implicitly saying to Khrushchev: "The wheels are in motion. The longer your ships sail towards Cuba, the higher the probability that an incident will occur that neither of us can control, leading to a war we both want to avoid. Only you can de-escalate this now by turning your ships around."

This approach allowed Kennedy to demonstrate resolve without taking the irrevocable step of starting a war. He was deliberately steering the situation onto a more dangerous path to force his opponent's hand.

Khrushchev's Counter-Brinkmanship

Brinkmanship was not a one-sided affair. Khrushchev was also a player in this "competition in risk-taking."

1. The Initial Gamble: His decision to place the missiles in Cuba was itself an act of brinkmanship. He was gambling that he could present the world with a fait accompli—fully operational nuclear missiles just 90 miles from the US—believing Kennedy would find it too risky to challenge the new status quo. He badly miscalculated Kennedy's resolve.

2. The Defiant Response: As the video described, Khrushchev's initial public reaction to the quarantine was one of defiance, calling it an "act of aggression" and stating his ships would ignore it. This was a classic counter-move in brinkmanship: testing the opponent's resolve by pushing back and escalating the rhetoric, thereby increasing the perceived risk.

3. The Credibility of Threats: A crucial part of brinkmanship is making statements that signal an unwavering, perhaps even irrational, commitment. Let's listen to Thomas Schelling's own analysis of a key statement made by President Kennedy.

Schelling's point is fascinating. While he personally found Kennedy's threat unbelievable, it served a strategic purpose. It contributed to the atmosphere of extreme risk, signaling to the Soviets that the US leadership was contemplating scenarios that went far beyond rational cost-benefit analysis. This demonstrated a willingness to embrace the risk of the situation spiraling out of control—the very essence of brinkmanship.

Evaluating the Tool: Success and Frightening Risk

So, how do we evaluate brinkmanship as a strategic tool in this crisis?

• Effectiveness: In one sense, it was remarkably effective. Kennedy achieved his primary objective—the removal of the missiles—without firing a shot. He successfully used the threat of force, amplified by the risk of accidental escalation, to compel his opponent to back down. The crisis ended with Soviet ships turning back and a negotiated settlement.

• Danger: The risk of failure was catastrophic. The Dixit et al. paper you read from earlier concludes that the cumulative probability of disaster during the crisis was "frighteningly high." Both leaders came perilously close to a point where the situation would be "totally uncontrolled." The downing of the U-2 spy plane over Cuba on October 27th by a Soviet SAM missile—an act not directly ordered by Moscow—is a stark reminder of how easily control was lost.

Brinkmanship "worked" in 1962, but it brought the world closer to nuclear war than at any other time in history. The strategy relies on both leaders being rational enough to fear mutual destruction, while simultaneously posturing as if they are willing to risk it. It is a paradox played out at the highest possible stakes.

Conclusion

Today we have dissected the concept of brinkmanship and seen how it was the central strategic dynamic of the 13 days.

Key Takeaways:

• Brinkmanship is the strategic manipulation of shared risk. It involves creating a credible probabilistic threat of mutual disaster, rather than a direct, all-or-nothing ultimatum.
• The strategy requires a "controlled loss of control," where events are deliberately put on a path that could lead to catastrophe through accident, miscalculation, or unauthorized actions.
• Kennedy's quarantine was a classic brinkmanship tactic, incrementally increasing the risk of conflict to compel a Soviet retreat.
• Khrushchev also engaged in brinkmanship, first with the secret missile deployment and then with his defiant response to the quarantine, turning the crisis into a "competition in risk-taking."
• As a tool, brinkmanship proved effective in achieving US objectives but was also incredibly dangerous, bringing the world to the edge of an abyss and highlighting the profound risks of such strategies.

Understanding brinkmanship reveals that the leaders were not just choosing between "war" and "peace." They were navigating a treacherous middle ground, manipulating probabilities and perceptions in a high-stakes psychological contest. This relied heavily on what they knew, what they didn't know, and what they thought the other side knew.

In our next lesson, we will delve deeper into this aspect by assessing the role of incomplete information and ambiguity in ExComm's decision-making process.