Is "mutually assured destruction" on its way out? Apparently so. Keir Lieber and Daryl Press, two defense analysts, reportedly have a new paper out suggesting Russia's nuclear capabilities have decayed to the point where the United States, perhaps, can no longer be deterred:
In a feat of technical sophistication and strategic insight, Lieber and Press have modeled a U.S. first strike against Russia. To be conservative, it assumes that U.S. nuclear weapons will perform with much less accuracy and reliability than should be expected. Even so, the authors conclude, a U.S. attack today would destroy the entire Russian nuclear arsenal.Part of this analysis depends on the observation that recent improvements to the American nuclear arsenalthe Navy, for instance, recently deployed 400 missiles with warheads five times as powerful as those on Cold-war era Trident II missilesonly really make sense if you assume that the Pentagon is trying to develop the ability to "win" a nuclear war outright. Insane, yes, but that seems to be the order of the day:
Lieber and Press emphasize that their analysis doesn't prove that a U.S. first strike would succeed, but it highlights a development that is grave if only because it's one that prudent planners in Russia and China, who conduct similar analyses, are no doubt already surmising: that their countries can no longer be confident of having a viable deterrent. Surely adding to their alarm is the realization that the nuclear imbalance, troubling enough already, will only grow in the coming years.
Washington's withdrawal from the Anti-Ballistic Missile Treaty and its concomitant pursuit of a national missile-defense system will greatly enhance its offensive nuclear capabilities, because although critics of missile defense correctly argue that it could never shield America from a massive full-scale nuclear attack, it could quite plausibly deal with the very few missiles an adversary might have left to deploy after a U.S. first strike. What's more, the United States is actively pursuing a series of initiativesincluding further advances in anti-submarine and anti-satellite warfare; in missile accuracy and potency; and in wide-area remote sensing, aimed at finding "relocatable" targets such as mobile ICBMsthat will render Russia's and China's nuclear forces all the more vulnerable.That explains the rationale for the missile defense system, apparently. And what does all this mean for foreign relations?
To be sure, America's emerging nuclear hegemony could bring benefits, including potential leverage vis-à-vis our superpower counterparts in such areas of competition as the Balkans and Taiwan. It will also force China to divert defense resources from its power-projection efforts in East Asia. (This, however, would be both a blessing and a curse: "We should expect a new, prolonged, and intense nuclear arms race," Lieber and Press conclude.) But whether or not America has deliberately pursued the ability to win a nuclear conflict, that capability will increase the risk of great-power war. U.S.-Chinese relations are bound to be edgy or worse for the foreseeable future, and although relations between Washington and Moscow are nowhere near their Cold War nadir, actual and potential strains remain formidable. Each country has nuclear-armed missiles that can be delivered against the other within minutesand in America's nuclear-war plans the overwhelming number of targets remain inside Russia. Most important, any shift in the nuclear balance itself will engender a volatility that could cause seemingly small conflicts between countries to quickly spiral.
Confronted with the growing nuclear imbalance, Russia and China will be forced to try to redress it; but given America's advantages, that effort, as Lieber and Press note, could take well over a decade. Until a nuclear stalemate is restoredif it ever isMoscow and Beijing will surely buy deterrence by spreading out their nuclear forces, decentralizing their command-and-control systems, and implementing "launch on warning" policies. If more than half a century of analyzing nuclear dangers and "crisis stability" has taught us anything, it is that all these steps can cause crises to escalate uncontrollably. They could trigger the unauthorized or accidental use of nuclear weapons; this could lead to inadvertent nuclear war.I may be in the small minority that doesn't quite understand why we'll simply have to fight a war with China someday, but the fears above seem reasonable. China and Russia are far more likely to be "edgy" when it comes to foreign policy if they can no longer be confident of their nuclear deterrents. And that really could make conflict more likely. Pleasant thought.