How to avert a nuclear war

James E. Cartwright and Vladimir Dvorkin write: We find ourselves in an increasingly risky strategic environment. The Ukrainian crisis has threatened the stability of relations between Russia and the West, including the nuclear dimension — as became apparent last month when it was reported that Russian defense officials had advised President Vladimir V. Putin to consider placing Russia’s nuclear arsenal on alert during last year’s crisis in Crimea.

Diplomatic efforts have done little to ease the new nuclear tension. This makes it all the more critical for Russia and the United States to talk, to relieve the pressures to “use or lose” nuclear forces during a crisis and minimize the risk of a mistaken launch.

The fact is that we are still living with the nuclear-strike doctrine of the Cold War, which dictated three strategic options: first strike, launch on warning and post-attack retaliation. There is no reason to believe that Russia and the United States have discarded these options, as long as the architecture of “mutually assured destruction” remains intact.

For either side, the decision to launch on warning — in an attempt to fire one’s nuclear missiles before they are destroyed — would be made on the basis of information from early-warning satellites and ground radar. Given the 15- to 30-minute flight times of strategic missiles, a decision to launch after an alert of an apparent attack must be made in minutes. [Continue reading…]

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