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Sustaining Peace After Civil War

Insights from 48 Recent Cases

  • 2025
  • Book

About this book

This book examines one of the most important questions in peace research: What leads to enduring peace after civil wars, and what leads to the resurgence of violence? For decades, intrastate conflicts have been the predominant form of armed conflict, and most recent civil wars were conflicts that recurred. The research presented in this book focuses on influenceable factors, first and foremost on the type of civil war termination and on the post-civil war order that is shaped by the distribution of military power between the former warring parties and the scale of political compromise. Moreover, it shows that the peacekeeping environment has a major influence on whether peace endures. The insights provided in this book are relevant for the academic community, and for decision-makers and practitioners involved in civilian or military efforts to establish and preserve peace.

Table of Contents

  1. Frontmatter

  2. 1. Why Study the Recurrence of Civil War?

    Thorsten Gromes
    This chapter examines the recurrence of civil wars, highlighting their devastating impacts on societies and the challenges of achieving lasting peace. It explores the factors that contribute to the recurrence of civil wars, including the distribution of military power, political compromise, and the effectiveness of peacekeeping missions. The analysis is based on a dataset of 48 civil wars that ended between 1990 and 2009, with a focus on the post-civil war period. The chapter also investigates the conditions under which peace agreements and military victories are effective in preventing civil war recurrence. Additionally, it delves into the role of peacekeeping missions and the feasibility of resuming civil war. The findings reveal that the divergence between the scale of political compromise and the distribution of military power is a key factor in understanding why peace collapses or survives. The chapter concludes with policy recommendations and suggestions for further research on the dynamics of post-conflict societies.
  3. 2. The Dataset on Post–Civil War Power and Compromise 1990–2012

    Thorsten Gromes
    This dataset delves into the intricate dynamics of post-civil war power distribution and political compromise, focusing on 48 civil wars that concluded between 1990 and 2012. It meticulously examines the distribution of military power and political compromise as pivotal factors in determining the stability of peace. The dataset introduces indicators for relative military power and political compromise, providing a nuanced understanding of post-civil war scenarios. It covers developments following all types of war termination, including peace agreements, ceasefires, and military victories. The dataset also includes case descriptions that explain all coding decisions and identify sources, ensuring transparency and reliability. By analyzing the interaction between relative military power and political compromise, this dataset offers valuable insights into the conditions under which peace endures or collapses. It serves as a comprehensive resource for researchers and practitioners in the field of conflict resolution and peace studies.
  4. 3. Divergence Between Relative Military Power and the Scale of Political Compromise as a Path to Civil War Recurrence

    Thorsten Gromes
    This chapter delves into the complex dynamics of civil war recurrence, focusing on the interplay between relative military power and the scale of political compromise. The analysis reveals that the convergence or divergence of these factors contributes to a limited extent in explaining why peace lasts or collapses. The study employs a mixed-methods approach, combining quantitative survival analysis and Qualitative Comparative Analysis (QCA), to test the assumption that the relationship between military power and political compromise is decisive for sustaining peace after civil war. The findings indicate that neither convergence nor divergence alone can fully resolve the contradictory findings in previous research. The chapter also discusses the implications of these results and examines alternative approaches to addressing the contradictory findings of previous studies. Key topics include the role of military victories versus peace agreements in preventing civil war recurrence, the impact of power-sharing arrangements, and the significance of the information problem in bargaining and conflict resolution. The analysis provides a nuanced understanding of the conditions under which peace is likely to endure or collapse, offering valuable insights for policymakers and researchers in the field of conflict studies.
  5. 4. Preventing Civil War Recurrence: Do Military Victories Really Perform Better Than Peace Agreements? Causal Claim and Underpinning Assumptions Revisited (with Florian Ranft)

    Thorsten Gromes
    This chapter revisits the conventional wisdom that military victories are more effective than peace agreements in preventing civil war recurrence. The study challenges this assumption by examining the underpinning assumptions and testing their validity. The analysis focuses on civil wars since 1990, considering both state-based conflicts and related one-sided violence. The findings indicate that peace agreements exhibit an equally strong correlation to enduring peace as military victories. The study also explores various underpinning assumptions, such as the destruction of organizational capabilities, government effectiveness, military imbalance, and the deterrence of other contenders. The results show mixed support for these assumptions, with some being partially supported and others rejected. The chapter concludes that both military victories and peace agreements can be effective in preventing civil war recurrence, challenging the dominant narrative that favors military victories. The study highlights the importance of considering the specific context and conditions of each conflict when determining the most effective path to lasting peace.
  6. 5. Why Civil War Recurrence Is More Likely After Ceasefires Than After Peace Agreements

    Thorsten Gromes
    The chapter explores the reasons why civil war recurrence is more frequent after ceasefires than after peace agreements. It compares the two types of conflict termination, focusing on their impact on post-war stability. The analysis reveals that ceasefires are often associated with more balanced military power distributions, which can lead to divergent expectations and increased likelihood of renewed conflict. Additionally, ceasefires attract fewer international efforts, such as peacekeeping missions and development assistance, which are crucial for sustaining peace. The chapter also examines the role of opportunity factors, such as the maintenance of separate forces and control of territory, which are more prevalent after ceasefires. Through empirical data and case studies, the text provides a detailed overview of the challenges and dynamics involved in post-conflict scenarios, offering insights into the factors that contribute to the instability of peace after ceasefires.
  7. 6. Does Peacekeeping Only Work in Easy Environments? An Analysis of Conflict Characteristics, Mission Profiles, and Civil War Recurrence

    Thorsten Gromes
    This chapter delves into the effectiveness of peacekeeping missions in preventing the recurrence of civil wars, focusing on the interplay between conflict characteristics and mission profiles. It challenges the widespread assumption that peacekeeping success is solely determined by mission characteristics, highlighting the critical role of the peacekeeping environment. The analysis employs Qualitative Comparative Analysis (QCA) to examine 22 post–Cold War peacekeeping missions, identifying key factors such as the intensity of the conflict, the nature of war termination, and the presence of ethnic divisions. The findings reveal that peacekeeping missions with a restrained approach succeed in conducive environments but fail in adverse contexts. Conversely, strong peacekeeping missions are necessary to compensate for difficult environments where the parties to the conflict are more willing and capable of resuming war. The chapter concludes that contextual conditions significantly impact peacekeeping outcomes, emphasizing the need for tailored peacekeeping strategies that consider the specific characteristics of each conflict.
  8. 7. Opportunity and Civil War Recurrence: Where the Resumption of Civil War Is Feasible, It Will Not Inevitably Occur

    Thorsten Gromes
    This chapter delves into the complex dynamics of civil war recurrence, challenging the prevalent feasibility argument proposed by Collier, Hoeffler, and Söderbom. The study presents three key objections to their framework, including the conceptual limitation of focusing solely on rebellion feasibility, the use of indirect proxies for feasibility, and the insufficient testing of the sufficiency claim. The research employs Qualitative Comparative Analysis to investigate the relationship between feasibility factors and civil war recurrence, revealing that feasibility alone is not sufficient for civil war recurrence. However, the presence of multiple feasibility factors increases the likelihood of relapse. The study also highlights the importance of factors beyond feasibility, such as the type of war termination and political compromise, in understanding civil war recidivism and peace survival. The findings underscore the need for a more comprehensive approach to post-conflict peacebuilding that addresses a broader range of issues. The chapter concludes with policy recommendations that emphasize the importance of considering factors beyond feasibility in post-conflict scenarios.
  9. 8. Conclusion

    Thorsten Gromes
    This chapter delves into the complex dynamics of civil war recurrence, focusing on conflicts that ended after the Cold War. It identifies key factors such as the distribution of military power, the scale of political compromise, and the type of conflict termination (military victory, peace agreement, or ceasefire) that influence the likelihood of peace survival. The analysis reveals that peace is more unstable after mere ceasefires than after peace agreements, and that the peacekeeping environment plays a crucial role in determining the success of peacekeeping missions. The chapter also challenges the notion that the feasibility of rebellion is sufficient for civil war recurrence, emphasizing the importance of addressing the grievances of the parties involved. Through a detailed examination of 48 civil wars, the chapter provides valuable insights into the conditions under which peace is more likely to endure and offers policy recommendations for effective conflict management.
  10. Backmatter

Title
Sustaining Peace After Civil War
Author
Thorsten Gromes
Copyright Year
2025
Electronic ISBN
978-3-032-11710-6
Print ISBN
978-3-032-11709-0
DOI
https://doi.org/10.1007/978-3-032-11710-6

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