Root Causes of Civil War

Causes of Civil War Introduction Why do civil wars start? This is one of the most important questions in conflict studies. Scholars have developed competing theories to explain civil war origins, each focusing on different root causes. Understanding these theories—and the evidence supporting them—is essential for comprehending how internal conflicts begin and persist. The three major frameworks for understanding civil war causes emphasize different motivations: greed (economic incentives), grievance (injustice and resentment), and opportunity (structural conditions that make rebellion feasible). Let's explore each. Greed-Based Explanations: War as Economic Profit Greed theory proposes that civil wars are fundamentally driven by individuals and groups seeking to maximize economic profit through conflict. Rather than viewing war as a response to injustice, this perspective sees combatants as rationally pursuing financial gain. The Collier-Hoeffler Model The most influential greed-based research comes from the Collier-Hoeffler model, which examines how dependence on primary commodity exports affects civil war risk. Primary commodities are natural resources like oil, diamonds, timber, and agricultural products that countries extract and export with minimal processing. The findings are striking: Countries where primary commodities represent 32% of GDP have a 22% chance of entering civil war within five years, compared to only 1% for countries with no primary commodity exports. This dramatic difference suggests that resource dependence significantly increases conflict risk. Why would this be? The theory suggests that valuable natural resources create opportunities for rebels to finance themselves by capturing resource-rich territory. Additionally, governments may be weakened by corruption tied to resource wealth, making them easier targets for insurgency. Petroleum dependence shows a slightly elevated risk compared to other commodities, likely because oil is particularly valuable and concentrated geographically, making it easier for rebel groups to control and monetize. Diaspora Networks and Financing Another economic factor is diaspora size—the population of a country's citizens living abroad. Diasporas can provide crucial financial support to rebel groups. The research shows a striking pattern: as diaspora size increases from the smallest to the largest observed in studies, the probability of civil war increases six-fold. This illustrates how transnational networks of exiles can fuel conflict from abroad. Factors That Reduce Civil War Risk Importantly, greed theory also identifies protective factors. Higher male secondary school enrollment, higher per-capita income, and faster economic growth all reduce the likelihood of civil war. This makes intuitive sense: when people have education, wealth, and economic opportunities, they have less incentive to join rebellions. Grievance-Based Explanations: War as Response to Injustice In stark contrast to greed theory, grievance theory argues that civil wars arise from socioeconomic or political injustices. People rebel, this theory suggests, because they feel wronged—whether through economic inequality, political repression, or discrimination. The Puzzle of Insignificant Grievance Measures Here's where things get surprising: When researchers measure grievance factors statistically, most of them turn out to be insignificant predictors of civil war. Measures like economic inequality, political rights violations, ethnic polarization, and religious fractionalization don't reliably predict which countries will experience civil war. This finding challenged conventional wisdom and suggested that grievance alone cannot explain conflict. However, grievance-based explanations aren't entirely wrong—the evidence is more nuanced than a simple rejection. Ethnic Dominance: The Key Grievance Factor One grievance measure that does matter is ethnic dominance—when the largest ethnic group comprises a majority of the population. Countries with ethnic dominance have double the risk of civil war compared to those without it. This is important because ethnic dominance creates a structural situation where minority groups may feel permanently excluded from power, generating genuine grievances. The Fractionalization Paradox Counter-intuitively, greater ethnic and religious fractionalization (having many different groups) actually lowers civil war risk—but only when ethnic dominance is absent. Why? When a country has many roughly equal-sized ethnic or religious groups, no single group can dominate completely. This forces political compromise and coalition-building. However, when one group does dominate in a fractionalized society, conflict risk rises because excluded minorities have clear incentives to rebel. Opportunity-Based Explanations: When Rebellion Becomes Feasible Opportunity theory, developed by scholars James Fearon and David Laitin, shifts focus from motivation to capability. Their argument is straightforward: civil wars occur when structural and geographic conditions make it easier for rebels to recruit fighters and sustain insurgencies. Key Opportunity Factors Several conditions increase the opportunity for rebellion: Poverty: Poorer populations are easier to recruit because potential fighters have fewer economic opportunities elsewhere Political instability: Weak or chaotic governments lack the capacity to prevent insurgency Rough terrain: Mountains, forests, and difficult geography provide sanctuary where rebels can hide and organize Large populations: Bigger countries provide more potential recruits and are harder to govern uniformly Weak state capacity: States lacking financial and military resources cannot effectively suppress rebellion Why Weak States Fail This framework reveals an important insight: both authoritarian and democratic weak states are vulnerable to rebellion. The key isn't the type of government but its strength. A weak authoritarian regime and a weak democracy are both susceptible because neither has the resources to suppress insurgents effectively. Conversely, a strong state—regardless of whether it's democratic or authoritarian—can prevent most rebellions through effective control and resource allocation. Criticisms of the Greed vs. Grievance Debate Scholars like Cristina Bodea and Ibrahim El-Badawi have pointed out that focusing too heavily on the greed-versus-grievance dichotomy oversimplifies reality. Empirical research actually shows that numerous other factors matter for civil war onset. In other words, the debate between these two theories may have caused researchers to overlook important variables that don't fit neatly into either category. This criticism emphasizes that civil wars likely have multiple, interacting causes rather than single dominant factors. Additional Important Causes and Factors Beyond the major theories, research has identified several other significant drivers of civil war. Bargaining and Commitment Problems One critical issue is that parties in potential conflicts often cannot credibly commit to peace agreements. If two sides agree to a ceasefire, each fears the other will violate it once positioned to gain advantage. This fundamental mistrust can make negotiated settlements difficult, leaving conflict as the only apparent option. Governance, Institutions, and Accountability Barbara Walter's research identifies poor accountability, low public participation, and lack of transparency as drivers of repeated civil wars. Interestingly, strong institutions and good governance—not democracy or wealth per se—are the primary indicators of reduced civil war recurrence risk. A country can be wealthy or democratic but still experience civil war if institutions lack accountability and citizens cannot participate meaningfully in governance. Geographic and Military Factors High population dispersion across territory makes it harder for central governments to exercise control, enabling rebels to establish strongholds. Mountainous terrain particularly favors insurgents by providing natural sanctuary and defensive advantages. Population Size The risk of civil war rises approximately proportionally with population size. Larger countries are harder to govern uniformly and provide more potential recruits for rebellions. Poverty and Causality Questions Poverty is correlated with civil war, but importantly, the direction of causality is debated. Some researchers find that lower per-capita income increases conflict risk, while others argue that both poverty and conflict are symptoms of deeper institutional or governance failures rather than causes of each other. Inequality and Relative Deprivation Higher levels of socioeconomic inequality historically increase civil war probability. More importantly, relative deprivation—how one's situation compares to others' situations—may matter more than absolute poverty. A poor person in a poor country might be content, while the same person in an unequal society where others are much wealthier might feel resentful and be drawn toward rebellion. Time and Recurrence The longer the elapsed time since a previous civil war, the less likely a new conflict will erupt. However, diaspora funding can offset this stabilizing effect by providing resources that enable aging rebel movements to revive. Gender Factors and Human Motivations <extrainfo> Improved women's rights are associated with fewer civil wars, suggesting that more inclusive political systems may reduce conflict risk. </extrainfo> Importantly, not all civil war participation is driven by economic incentives or structural opportunity. Elisabeth Wood argues that "emotional engagements" and "moral commitments" motivate civilians to join insurgencies, even when personal material gain is unlikely or impossible. The "pleasure of agency"—the desire to change social relations and exercise power over one's own circumstances—fuels participation in civil wars. This reminds us that human motivations are complex and that purely economic or structural explanations miss important psychological and moral dimensions of conflict. Summary Civil wars arise from multiple causes operating simultaneously. Greed factors like resource dependence and diaspora financing create financial incentives for conflict. Grievance factors like ethnic dominance create resentment, though most measures of grievance are surprisingly weak predictors. Opportunity factors like poverty, weak states, and difficult terrain make rebellion feasible. Additionally, governance failures, commitment problems, and psychological motivations all play roles. Understanding civil war requires appreciating this complexity rather than reducing conflicts to single causes.