Questions about the nuclear balance have resurfaced in Europe after a long hiatus. NATO members in the Baltic region especially worry that Russia might use nuclear weapons to gain a strategic advantage at their expense. I draw on the political science literature on nuclear coercion to investigate whether Russia can successfully use nuclear coercion. I argue that NATO defense planners have more cause for optimism than they might realize. First, Russia will continue to suffer an unfavorable nuclear balance at the strategic level and so will never fully be confident that it can escape unacceptable costs meted out by the United States. Second, although their record of behavior suggests that Russian leaders might believe that nuclear weapons are useful for compellence, an alternative explanation is possible. That is, they may simply be compensating for their own relative inferiority with bluster. Third, nuclear coercion is only effective under very stringent circumstances: when the user is facing a large-scale conventional military attack that it cannot handle. Far from being cowed, NATO members located in the Baltic region are responding to Russia's nuclear saber rattling with efforts to bolster their defense and deterrence measures.The nuclear balance of power seems to matter once again in Europe. After two decades of dwindling nuclear weapons stockpiles on the continent and great power arms control agreements, several North Atlantic Treaty Organization (NATO) members worry that they now need to reckon with the nuclear dilemmas that used to be salient during the Cold War. Those dilemmas remain intractable even with the benefit of hindsight and access to primary documents from that era. We would never know whether American decision-makers would really sacrifice New York City to save Paris, much less Warsaw in the present day. Nor do we know how to strike the appropriate balance between making extended nuclear deterrence commitments to allies and providing assurances to adversaries who might fear a nuclear attack themselves. After all, improving a commitment to an ally could sometimes make an adversary feel more insecure, thereby leading to a spiral that all would prefer to avoid. Even the value of alliances in the nuclear age remains murkier than we would like to believe. If great powers derive their ultimate security from having a survivable nuclear arsenal capable of issuing a retaliatory strike, then how can allies enhance security when, theoretically at least, the condition of mutually assured destruction (MAD) renders them less important? Put simply, tough times appear to lie ahead for those NATO membersspecifically, Poland and the three Baltic countries of Estonia, Latvia, and Lithuania -that may be most sensitive to unfavorable developments in the overall nuclear balance (Luik & Jermalavičius 2017;Veebel 2018).Developing reliable answers or solutions to these challenges is probably an impossible undertaking, and so the goal of this essay is much more modest: to understand the extent to which developments in th...