From Emma Ashford and Joshua Shifrinson, at Foreign Affairs, "Russia and the West Risk Falling Into a Deadly Spiral":
During the first week of Russia’s invasion of Ukraine, Russian leaders repeatedly raised the prospect of a nuclear response should the United States or its NATO partners intervene in the war. Russian President Vladimir Putin concluded his speech announcing war in Ukraine by warning that “anyone who tries to interfere with us … must know that Russia’s response will be immediate and will lead you to such consequences as you have never before experienced in your history.” He subsequently emphasized Russia’s “advantages in a number of the latest types of nuclear weapons” while ordering Russian strategic nuclear forces on alert. Russian Foreign Minister Sergey Lavrov returned to this theme a few days later, noting that a third world war would be a nuclear war and urging Western leaders to consider what a “real war” with Russia would entail. The message was crystal clear: nuclear escalation is possible should the United States or its NATO partners intervene in Russia’s war against Ukraine. Observers have expressed shock at the notion of a return to Cold War nuclear brinksmanship. The U.S. government even tried to reassure Moscow by postponing an intercontinental ballistic missile test planned for early March. These steps are clearly for the best; no one wants a nuclear exchange. Yet the heavy focus on nuclear escalation is obscuring an equally important problem: the risk of conventional escalation—that is to say, a non-nuclear NATO-Russia war. The West and Russia may now be entering into the terminal stages of an insecurity spiral—a series of mutually destabilizing choices—which could end in tragedy, producing a larger European conflagration even if it doesn’t go nuclear. Indeed, the coming weeks are likely to be more perilous. The United States should be especially attuned to the risks of escalation as the next phase of conflict begins, and should double down on finding ways to end the conflict in Ukraine when a window of opportunity presents itself. This may involve difficult and unpleasant choices, such as lifting some of the worst sanctions on Russia in exchange for an end to hostilities. It will, nonetheless, be more effective at averting an even worse catastrophe than any of the other available options. Observers have expressed shock at the notion of a return to Cold War nuclear brinksmanship. The U.S. government even tried to reassure Moscow by postponing an intercontinental ballistic missile test planned for early March. These steps are clearly for the best; no one wants a nuclear exchange. Yet the heavy focus on nuclear escalation is obscuring an equally important problem: the risk of conventional escalation—that is to say, a non-nuclear NATO-Russia war. The West and Russia may now be entering into the terminal stages of an insecurity spiral—a series of mutually destabilizing choices—which could end in tragedy, producing a larger European conflagration even if it doesn’t go nuclear. Indeed, the coming weeks are likely to be more perilous. The United States should be especially attuned to the risks of escalation as the next phase of conflict begins, and should double down on finding ways to end the conflict in Ukraine when a window of opportunity presents itself. This may involve difficult and unpleasant choices, such as lifting some of the worst sanctions on Russia in exchange for an end to hostilities. It will, nonetheless, be more effective at averting an even worse catastrophe than any of the other available options. TIT FOR TAT In the parlance of security studies, an insecurity spiral ensues when the choices one country makes to advance its interests end up imperiling the interests of another country, which responds in turn. The result is a potentially vicious cycle of unintended escalation, something that’s happened many times before. For example, Germany’s attempt at the turn of the twentieth century to build a world-class navy threatened the naval power on which the United Kingdom depended; in response, London began to bulk up its own navy. Germany responded in kind, and soon, the scene was set for World War I. The origins of the Cold War between the United States and the Soviet Union share a similar genesis, as both sides sought influence throughout the world and engaged in an arms race. In each case, a tit-for-tat spiral drove states toward conflict. Today, the United States and Russia have already taken steps to shore up their real or perceived sense of insecurity, spurring the other side to do the same. As the scholars William Wohlforth and Andrey Sushentsov have argued, the United States and Russia have been engaged in a slow-motion spiral throughout the post-Cold War era as each sought to refashion European security to its liking and tried to limit the other side’s inevitable response. Recent events highlight the trend: the 2008 Bucharest summit, at which NATO pledged to bring Ukraine and Georgia into the alliance, was followed by Russia’s 2008 invasion of Georgia. A 2007 dispute over the Bush administration’s plans to base missile defense in Poland and the Czech Republic was followed by Russian violations of related arms-control agreements. In 2014, the EU’s offer to Ukraine of an association agreement precipitated the Maidan revolution in Kiev, heightening Russian fears of Ukrainian NATO membership and prompting the Russian seizure of Crimea that year. Russia’s invasion of Ukraine, however, has dangerously upped the ante and accelerated the spiral’s pace. In response to Moscow’s wanton and illegitimate aggression, the United States, NATO, and EU member states have sent Ukraine significant quantities of lethal weapons, placed draconian sanctions on Russia’s economy, and launched a long-term military buildup. Currently, Moscow sees the United States and its partners threatening to make Ukraine into a de facto ally—a situation Moscow’s own aggression helped cause—whereas the United States sees Moscow threatening the core principles undergirding peace in Europe...
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