Oskar Morgenstern’s journal article develops a theory of secure nuclear deterrence and translates it into a proposal for a mobile, predominantly sea-based retaliatory force. Its two parts move from the conditions of strategic stability to the “Oceanic System,” then widen the argument to limited war, economic competition, scientific change, and negotiation. The central distinction is between possessing destructive weapons and possessing a force that can survive attack and reliably retaliate. Only the latter, Morgenstern argues, can restrain aggression without making survival depend on instantaneous decisions under uncertain warning.
The argument begins from the antagonism between the Western and communist blocs and the practical disappearance of active defence against heavy nuclear attack. If incoming weapons cannot reliably be intercepted, deterrence must threaten what the aggressor values most: cities, industry, population, and national survival. Effectiveness consequently depends on the opponent’s valuation of prospective losses, not simply on the number of weapons available. Morgenstern warns against projecting American standards onto Soviet or Chinese leaders. A destructive capacity sufficient to deter one government might fail against another willing to accept greater losses.
Survivability is the decisive technical condition. A vulnerable force must launch before destruction and cannot safely retain weapons for later use. This creates pressure toward pre-emption and exposes both sides to false alarms:
Thus vulnerable retaliatory forces make accidental large scale thermonuclear war a distinct possibility.
The problem is structural rather than merely psychological. Weapons ostensibly intended for retaliation become instruments that must strike first to remain usable. An invulnerable force, by contrast, can absorb attack, preserve options, and permit retaliation graduated in time and weight. Security thus restores room for political judgment. Its required strength is determined by unacceptable damage to the adversary, rather than by an indefinitely escalating effort to outnumber enemy weapons.
Crucially, this condition must be reciprocal. Unilateral invulnerability leaves the vulnerable opponent exposed, fearful, and dependent on immediate reaction:
Mutually effective, secure deterrents are required in order to stabilize the bi-polar relationship now given in the conflict between East and West.
Morgenstern therefore connects Western security to the adversary’s security. Once both possess assured retaliatory power, additional destructive capacity ceases to improve deterrence, opening possibilities for negotiated limits and reductions. Yet stability remains contingent on technological change: a discovery that defeats one side’s survivability could restart the competitive dynamic. His proposal for openly accessible basic research seeks to prevent destabilizing scientific monopolies. This aspiration sits uneasily beside his later insistence that some military secrecy is unavoidable and that Soviet information controls disadvantage the West.
Part II supplies the geographical and technological substance of the argument. Hardening fixed bases, Morgenstern contends, invites heavier attacks against known locations while increasing radioactive fallout over the societies being defended. Mobility offers a different principle:
Since hardening is ineffective and undesirable we must choose mobility.
His preferred implementation combines mobility with concealment and randomized deployment across the oceans, above all through nuclear-powered Polaris submarines. Moving retaliation away from American and allied territory would reduce the exposure associated with land bases. It could also ease NATO disputes over hosting weapons and controlling warheads: jointly manned vessels would embody collective defence without concentrating the force inside particular member states.
Nevertheless, the Oceanic System is a diversified architecture, not reliance on a single platform. Morgenstern considers missiles on barges and freighters, nuclear-powered seaplanes, and mobile railway or truck launchers. He acknowledges difficult command and communication problems and the geographical limitations of land-based mobility. Diversity matters because several distinct technical breakthroughs would then be needed to undermine the whole force. Mathematical methods could optimize the mixture and deployment probabilities; the governing principles are small units, movement, and random distribution.
Strategic stability does not, however, eliminate conflict. Morgenstern expects competition blocked at the thermonuclear level to migrate into limited wars and subsequently into economic, political, and ideological struggles. He advocates a separate limited-war capability, ultimately including small nuclear weapons to offset communist manpower superiority. Although he recognizes their potential for rapid escalation, he argues that secure overall deterrence would constrain escalation. This is an important qualification to the system’s promise: survival at one level requires additional military and political capacities at others.
The conclusion is markedly darker than the engineering proposal. Morgenstern distinguishes consumer abundance from resources devoted to growth and defence, while suggesting that greater Soviet prosperity could increase what Soviet leaders fear losing. He also argues that technological novelty has outpaced diplomatic understanding. Negotiators must discover how binding agreements can become possible between opponents who recognize a common interest in survival but cannot safely disarm. His portrayal of communist victory as irreversible subjugation sustains a willingness to fight even at catastrophic risk.
The article finally judges devastating thermonuclear war more probable than its avoidance, while acknowledging the difficulty of assigning probabilities to singular events. Its closing demand crystallizes both its strategic logic and its severity:
And the aggressor must know that his destruction is certain.
The work’s enduring conceptual contribution is its separation of destructive strength from secure deterrence: stability requires survivable, mutually recognized retaliatory capabilities, not merely larger arsenals. Its limits appear in the confidence placed in particular technologies, its reliance on nuclear means for limited conflict, and the tension between reciprocal security and its uncompromising account of ideological struggle.
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