Editor's note: This text is the introduction to a roundtable review of Mark Kramer’s The Fate of the Soviet Bloc’s Military Alliance: Reform, Adaptation, and Collapse of the Warsaw Pact, 1985-1991 (Cambridge University Press), reprinted from H-Diplo’s Robert Jervis International Security Studies Forum. All four reviews and the book author’s response are available here. The Warsaw Pact was signed in 1955, shortly after West Germany joined NATO, and the alliance it created initially included the Soviet Union, Romania, Poland, Hungary, East Germany, Czechoslovakia, Bulgaria, and Albania, which withdrew in 1968.
The dissolution of the Warsaw Pact in 1991 marked the formal end of the Soviet Bloc’s principal military alliance and closed a central institutional chapter of the Cold War in Europe. Yet the alliance’s rapid unraveling in the late 1980s and ultimate disappearance has often occupied the margins of accounts of the Cold War’s end, overshadowed by more familiar developments such as the upheavals of 1989, German unification, and the collapse of the Soviet Union itself. Mark Kramer’s The Fate of the Soviet Bloc’s Military Alliance addresses this imbalance by treating the Pact’s final years as a problem of analysis in its own right. A widely respected Cold War historian and specialist on Soviet-East European relations, Kramer argues that an “integrated account of the political and military changes that culminated in the dissolution of the Warsaw Pact is still needed,” particularly one that traces decisions in Moscow that “ultimately determined the fate of the alliance” (p. 12).
His archivally grounded reinterpretation, published in Cambridge University Press’s Cambridge Elements series, is deliberately concise—54 pages of text with another 10 pages of notes and bibliography—but still ambitious, distilling decades of Kramer’s research into readable prose. In his response to the reviews, Kramer also previews a forthcoming three-volume study that will expand on key details and is likely to set a high bar for future work.
At the heart of Kramer’s argument is the claim that the Warsaw Pact was not destined to fall apart in the wake of perestroika, but was instead undone by a specific and radical Soviet policy shift in early 1989. Although Soviet leader Mikhail Gorbachev had endorsed the Pact in traditional Brezhnevite terms when he came to power in March 1985, continuing to affirm the legitimacy of its three-decade existence and its implied obligations through 1988, he changed course in March 1989, and authorized a dramatic reinterpretation of the Warsaw Pact’s role (13-17, 34-39). Most crucially, Gorbachev accepted the views of his key reformist advisers that the internal affairs of Pact members, especially popular unrest and political change, should no longer fall within the scope of alliance contingencies (38-40). This doctrinal rupture effectively invalidated the coercive premise that had sustained Soviet dominance since 1956.
Kramer argues that this policy change was not initially designed to dismantle the Pact. On the contrary, Gorbachev and many in the Soviet leadership hoped for a rejuvenated, less coercive alliance that could coexist with reform and détente. But the decision to rule out the use of Soviet troops in Eastern Europe to defend communist regimes against internal political unrest fundamentally altered the Pact’s structure, empowering East European actors to test and ultimately break the limits of Soviet tolerance. According to Kramer, the reforms in Hungary and Poland, the Velvet Revolution in Czechoslovakia, and the German Democratic Republic’s disintegration occurred not in defiance of Soviet policy but within the space that Moscow had deliberately opened. The dissolution of the alliance was therefore an unintended consequence of a Soviet decision, not a Soviet retreat in response to foreign pressure or internal economic pressures (33, 43-46).
The book briefly traces the compressed trajectory of the policy process, recounting a contested and uneven shift in Soviet thinking and practice, notably in the Warsaw Pact’s adoption of a defensive doctrine in 1987, where “old thinking” persisted even as “new thinking” and decisions to reduce Soviet troops and weapons were introduced (22-32). The Kremlin’s efforts to redefine what counted as sufficient defense in a deteriorating economic environment were reinforced by changes in civil-military relations (22-34).1 To Kramer, such bold moves underscore the extent to which the alliance’s military posture could be reshaped rapidly from the center while simultaneously weakening the alliance’s legitimacy as a genuinely collective institution. Member state leaders confronted faits accomplis that signaled both Soviet dominance and Soviet retrenchment (24-25, 46).
Kramer reveals important details about how the Kremlin reversed course to arrive at a non-intervention stance in Eastern Europe, showing that it was not merely improvised but prepared in advance through a secret reinterpretation of obligations in a March 1989 memorandum. This was solidified by a deliberate effort to bind the Soviet leadership collectively to restraint by securing Politburo and Defense Council agreement “well in advance” that Soviet forces would not be used to rescue collapsing communist regimes (36-38). Military assistance was now committed only in the event of external armed attack. However, why Gorbachev misperceived the consequences of such radical steps is not entirely clear. Did he really believe that the East Europeans would willingly choose to remain connected to Soviet-dominated institutions, as some of the reviewers wonder?
The book then follows the alliance’s endgame after 1989. Kramer portrays Soviet officials as attempting to preserve the Pact by converting it into a mainly political body, even as Central European governments pushed toward dismantlement and explored alternatives. East European leaders increasingly sought to loosen ties and move toward NATO as Soviet officials pursued last-ditch efforts to prevent outright dissolution. Allied military institutions were disbanded in early 1991 before the Warsaw Pact organization itself was dissolved in July. Kramer treats this sequence not only as the culmination of alliance decline but also as a development that foreshadowed the Soviet Union’s own impending collapse (54).
While acknowledging the format constraints of the Cambridge Elements series, all four reviewers in this roundtable concur that Kramer is well positioned to attempt such a synthesis, underscoring his expertise and narrative clarity, his longstanding scholarly engagement with the subject, and his ability to mobilize declassified documentation with unusual density for so brief a format. They also illuminate the interpretive trade-offs of a short, Moscow-centered synthesis.
Laurien Crump welcomes Kramer’s monograph as “shedding new light” on the end of the Cold War by examining it through the lens of the dissolution of the Warsaw Pact. She notes in particular Kramer’s emphasis on Gorbachev’s military thinking and his “dismissal of the Brezhnev doctrine, which was both later and more collective than is usually thought.” Crump underscores Kramer’s finding that the Soviet decision not to intervene in Eastern Europe, “even if the Communist governments there collapsed” (37-38), was both “premeditated” and ironic because “the decision to increase the leeway of the Eastern European countries was made without the consent of their leaders.” Some of those leaders, “such as the East German leader Erich Honecker and his Romanian colleague Nicolae Ceauşescu were aghast upon the realization that there might not be Soviet troops to keep their own regimes or those of other Eastern European countries in power.”
While Crump’s review is largely positive and even laudatory, calling the book “a must-read for anyone with an interest in the end of the Cold War, Soviet alliances, or Eastern Europe at such a decisive time in history,” she does raise criticisms and suggestions. In particular, Crump would have liked more on episodes such as the April 1989 informal meeting of Warsaw Pact foreign ministers (minus the Soviet Union) to discuss Moscow’s unilateral troop cuts, an incident suggesting East European agency that Kramer only briefly touches upon. Additionally, Crump suggests that the alliance’s dysfunction predates 1985 and that more could be said about long-term cracks in its foundation. Relatedly, she points out that the final stages of the Pact’s dissolution in 1990-1991, when Eastern European leaders pushed to dissolve the alliance against Moscow’s hesitations, deserve further elaboration. She notes it “remains somewhat vague whether Gorbachev himself actually attempted to salvage” the Pact in its last months. Given Kramer's earlier focus on Gorbachev’s decision-making, Crump suggests the question of whether Gorbachev tried (and failed) to preserve a political version of the alliance warrants more explicit attention.
Gudrun Persson credits Kramer with correcting notable oversights in prior scholarship, and rectifying the tendency to forget the Warsaw Pact’s dissolution amid the drama of German reunification and the Soviet Union’s fall. She also lauds the book as “rich in content” and making “elaborate use of primary sources, mainly from various Russian and East European archives.” In particular, Kramer deploys previously unpublished or ignored documents alongside his own prior research. Persson identifies this impressively wide scope of evidence as a major strength of the book.
Persson highlights Kramer’s identification of two main drivers behind Gorbachev’s policy shift: (1) the need to revitalize the failing Soviet economy and (2) the pursuit of arms control progress with the West. These imperatives pushed Gorbachev to seek a less burdensome security posture, which was encapsulated in the new doctrine of “reasonable sufficiency” and “non-offensive defense” adopted in May 1987. According to Persson, Kramer’s account convincingly demonstrates that “it was primarily domestic concerns that drove Gorbachev” and that “internal developments within the various Warsaw Pact member states resulted in the Pact’s dissolution.” In other words, the end of the Warsaw Pact was propelled from within: Politics and economics in Moscow and Eastern Europe, rather than pressure from Washington, led to the alliance’s demise.
Persson’s principal criticism centers on what she identifies as a notable omission: that a study attentive to military issues should have addressed the Soviet withdrawal from Afghanistan in 1988-1989, which she views as relevant to perceptions of Soviet credibility as a security patron. Kramer disputes this reading in his response, contending that evidence on the Soviet withdrawal shows that it was a foreign-policy success for Gorbachev rather than a credibility-destroying defeat and that the durability of the Soviet-backed Afghan government through the remainder of the Soviet era backs up Moscow’s assessment and successful execution.
Like the other reviewers, Una Bergmane credits Kramer’s book for its detailed reconstruction of internal Soviet debates in the Politburo and Defense Council based on archival records from Moscow and the Gorbachev Foundation. Bergmane deems The Fate of the Soviet Bloc’s Military Alliance a “lucid, well-documented, and persuasive account” of how Gorbachev’s reforms undermined the Pact from within that “closely mirrors” an earlier article he published in early 2025 in the Journal of Modern European History on the Warsaw Pact’s end. Bergmane also finds Kramer’s work to be largely consistent with other emerging scholarship on the Warsaw Pact’s final years, explicitly citing recent works by Csaba Békés, Matěj Bílý, Susanne Maslanka, and Simon Miles, which likewise examine the disintegration of the Pact (often from specific national angles or emphasizing Eastern European agency).2 Kramer’s account aligns with these studies “in many respects,” Bergmane notes, confirming that his emphasis on Gorbachev and unintended consequences in Moscow is broadly supported by the literature.
Her caveat is that by devoting less attention to the role of the Eastern European governments, the book “underplays the extent to which Central European agency … determined the fate of the alliance.” Bergmane points out that Kramer does acknowledge, in passing, some of the debates within Eastern European countries (for example, initial flirtations in Hungary and Czechoslovakia with the idea of a pan-European security framework to replace both NATO and the Warsaw Pact). By mid-1990, as she notes, these Eastern officials realized that no viable alternative to NATO existed, so they pivoted toward dismantling the Pact and seeking NATO ties.
However, Bergmane notes that crucial questions are left largely unanswered in Kramer’s book: “Why were Central European leaders and societies seeking alternatives to the Warsaw Pact in the first place?” And why did they reject Gorbachev’s proposals to preserve the Pact in political form (a sort of non-military alliance) so decisively? Like Laurien Crump, Bergmane notes that such questions go to the heart of Eastern Europe’s motivations, but she contends that they are addressed more fully in the works by Bílý, Békés, Miles, and others that emphasize local perspectives. In her view, Gorbachev’s fatal miscalculation was believing that empowering reformers in Eastern Europe would keep them aligned with Moscow, when in fact the new democratic governments “immediately sought distance from the USSR.” Understanding why they bolted, and why the Warsaw Pact format held no appeal once freedom was at hand, is essential to explaining the post-1991 security order. On this point, Bergmane suggests that the book should have probed more deeply into why events like the Soviet crackdown in the Baltic republics in January 1991, which involved the violent suppression of protesters in Vilnius and Rīga by Soviet forces, “prompted Warsaw Pact leaders to accelerate the alliance’s dissolution.” Moreover, she concludes that Kramer’s aim of offering an “integrated account” necessitates greater weaving together of the Soviet and East European sides.
Michael De Groot likewise praises the book for providing “an engaging and compelling explanation for the disintegration of the Warsaw Pact” and its archival reach and command of the sources that reflect Kramer’s “prodigious scholarship.” He underscores the value of Kramer’s bibliography as a guide to relevant primary and secondary sources and highlights the book’s ability to make military debates legible to political historians. De Groot agrees with Kramer that in Gorbachev’s early years, he gave every indication that the Brezhnev Doctrine would remain in force. Yet De Groot notes that Kramer also identifies early signals of change in Gorbachev’s approach, even if their implications were unclear to contemporaries. While trumpeting socialist unity, Gorbachev privately assured East European leaders the Kremlin “would not dictate policy” to them and installed reform-minded officials (like Vadim Medvedev and Georgii Shakhnazarov) into key posts managing Bloc relations. In the spirit of glasnost, he even allowed East European governments to publicize problems caused by Soviet troops on their soil, for example, media reporting on crimes by Soviet soldiers, topics which had previously been off-limits.
De Groot emphasizes the “uneasy combination of ‘old thinking’ and ‘new thinking’” in Gorbachev’s early policy, which “set the stage” for a major turning point: the adoption of a defensive military doctrine in spring 1987. One of the book’s real strengths, he argues, is how Kramer documents the push-and-pull between Gorbachev and his military establishment during this period. Soviet military leaders tried to “slow walk” or stymie Gorbachev’s initiatives, while his civilian advisers urged him to go further.
De Groot’s critique concerns the book’s explanatory balance and perspective. A focus on leadership and doctrine, he suggests, can understate the degree to which structural forces—economic weakness, mounting debt burdens in the Bloc, and the Soviet Union’s reduced capacity to subsidize its allies, narrowed Moscow’s options, and weakened Soviet leverage irrespective of intention. Like other reviewers, he also notes that a Soviet-centered account risks treating East European publics and elites primarily as reactors to Moscow’s decisions, rather than as political actors shaping the alliance’s fate through their own initiatives and constraints.
All the reviewers acknowledge the format constraints of the Cambridge Elements series. At just under 30,000 words, Kramer’s study cannot fully contextualize every dynamic. The book draws heavily on Russian archival sources and on collections that preserve copies of archival documents, including holdings with the Gorbachev Foundation that Kramer accessed (and duplicated in part for Harvard’s collection). It also cites archival repositories across former Warsaw Pact states. As Bergmane notes, however, the Central European archival holdings listed in the bibliography appear less frequently in the book’s footnotes than Russian documentation—an imbalance that may reflect both the constraints of the Elements format and Kramer’s choice to foreground the Soviet side of alliance governance.
In his response, Kramer notes that his forthcoming multi-volume study will explore in greater depth many of the questions raised here, including the interplay of domestic and international factors, doctrinal evolution, economic pressures, and alliance dynamics after 1991. Likewise, Kramer does not directly contest the structural emphasis in his response, but reiterates that a key purpose of the Elements book is to show how doctrinal and institutional choices in Moscow helped make non-intervention politically and bureaucratically sustainable. Among other issues, he cites his earlier work (and the forthcoming study) in responding to questions regarding why East-Central Europeans sought to leave the Warsaw Pact but did not uniformly begin that push immediately. The Polish government, in particular, sought clarification of the status of the Polish-German border and worried that Gorbachev could be replaced by hardliners who would seek to reimpose Soviet hegemonic control.3
Kramer also recounts some of the principal security and political reasons that East-Central Europeans sought membership in NATO, including to consolidate “their countries’ status in the Western democratic club.” Contrary to Russian propaganda and some Western misconceptions, he also explains that the United States and other NATO members were initially opposed to enlargement and were motivated to enact specific membership criteria only after “vigorous lobbying by East-Central European countries throughout the first half of the 1990s.”
In sum, Kramer’s monograph succeeds in reframing the Warsaw Pact’s collapse not as a derivative consequence of Soviet dissolution, but as a politically contingent, state-driven process that was shaped by shifting doctrines, leadership calculations, and the crumbling of ideological unity. The roundtable affirms the importance of the book’s archival rigor and narrative clarity, even as it invites further debate on NATO enlargement, doctrinal reform, and the broader geopolitical collapse of the Soviet order. The disagreements aired in these reviews, and Kramer’s substantive replies, underscore the book’s value as both a synthesis and a spur to further scholarship.
Footnotes:
- 1
Kramer’s informed and detailed discussion of the military doctrinal debates in this heady period may be underappreciated by the reviewers. However, it is a topic of central importance that deserves fuller treatment, including in his forthcoming multi-volume study. In fact, other archival evidence shows that the Soviet military suffered from a persistent bias for offense and preemption, even when the political leadership was more oriented to a defensive/deterrence strategy as it was under Gorbachev and, less well understood, in the period before the German attack in 1941. See, for example, Cynthia Roberts, “Trapped on the Eve of War, 1941: Stalin and His Generals Failing Separately and Together,” in Barbara Ann Chotiner and Linda J. Cook, eds., The Post-Communist World in the Twenty-First Century: How the Past Informs the Present [Festschrift for Seweryn Bialer] (Lexington Books, 2022): 69-96.
- 2
Csaba Békés, “Hungary and the Dissolution of the Warsaw Pact (1988–1991),” Journal of Cold War Studies 25:4 (2023): 4-23; Matĕj Bílý, The Warsaw Pact, 1985–1991: Disintegration and Dissolution (Routledge, 2022);Susanne Maslanka, “The Withdrawal of the GDR from the Warsaw Pact: Expectations, Hopes, and Disappointments in German-Soviet Relations during the Dissociation Process,” Historical Social Research 47:2 (2022): 53-76; Simon Miles, “We All Fall Down: The Dismantling of the Warsaw Pact and the End of the Cold War in Eastern Europe,” International Security 48:3 (January 2024): 51-85.
- 3
The views of some contemporary observers mirror Kramer’s insights about apprehension by East European reformers about a possible reversal in Moscow and return of hardliners, even as one sensed the Pact was becoming vulnerable. The relevance of contemporary political developments in China also affected perceptions about “the pace of change … because it reverberates in unpredictable ways. For example, the symbolism of Chinese tanks crushing the pro-democracy movement in Beijing on the same day that Solidarity attained an electoral triumph in … Poland was not lost on the Polish reformers.” See Cynthia Roberts and Elizabeth Wishnick, “Ideology Is Dead! Long Live Ideology?” Problems of Communism 38:6 (November–December 1989): 57-69, at 65 and 68.
