Key Takeaways
1. Collective violence is a structured form of contentious politics, not random chaos.
Collective violence, by such a definition, excludes purely individual action, nonmaterial damage, accidents, and long-term or indirect effects of such damaging processes as dumping of toxic waste.
Structured social interaction. Collective violence is not merely a series of random, senseless acts of aggression or a sudden loss of emotional control. Instead, it represents episodic social interactions where at least two coordinated perpetrators inflict physical damage on people or objects. It is deeply connected to contentious politics, which involves public, collective claim-making that directly engages governments as monitors, targets, or third parties.
By-product of negotiation. Much of the physical damage that occurs in society is actually a contingent outcome of nonviolent political struggles. When groups bargain over resources, rights, or representation, their interactions can take a violent turn due to minor situational contingencies. This means that violence is often a by-product of routine political processes rather than an independent, irrational force.
Key defining elements:
- Immediate physical damage or forcible seizure of persons or objects.
- Involvement of at least two coordinated perpetrators.
- Direct intersection with governmental authority and contentious claims.
2. Observers of violence divide into idea, behavior, and relation-centric camps.
Broadly speaking, observers of human violence divide into three camps: idea people, behavior people, and relation people.
Three analytical perspectives. To understand how scholars explain collective violence, we must examine the three primary intellectual camps that dominate the field. "Idea people" argue that violence stems from socially acquired beliefs, values, and ideologies regarding the worth of others. "Behavior people" focus on evolutionary impulses, biological motives, and individual opportunities for aggression, often reducing collective phenomena to individual actions.
The relational approach. This book champions the third perspective, focusing on the negotiated transactions and shifting connections between individuals and groups. Relational analysis shows that collective violence is akin to a brutal conversation shaped by social ties and organizational structures. Rather than trying to eradicate bad ideas or suppress biological impulses, this approach suggests that managing violence requires transforming the relationships between contending groups.
Comparing the camps:
- Idea camp: Focuses on consciousness, culture, and learned values.
- Behavior camp: Focuses on evolutionary traits, individual motives, and opportunities.
- Relation camp: Focuses on transactions, social networks, and interactive dynamics.
3. Political regimes shape the character and intensity of collective violence.
In choosing political regimes, to some extent we also choose among varieties of violence.
Regime capacity and democracy. The nature of collective violence within any given territory is heavily dictated by two dimensions of the political regime: governmental capacity and the degree of democracy. Governmental capacity refers to the extent of control that state agents exert over resources, activities, and populations. Democracy measures the breadth, equality, and protection of citizens' relations with the state, alongside their collective control over state personnel.
Domestic peace in democracies. High-capacity democratic regimes generally experience the lowest levels of domestic collective violence because they offer regularized, nonviolent channels for making claims. Conversely, low-capacity undemocratic regimes are highly vulnerable to widespread, lethal violence because the state cannot suppress armed rivals or enforce peaceful agreements. In these weak states, controlling the government becomes a high-stakes prize that is frequently fought over using violent means.
Regime-violence dynamics:
- High-capacity democracy: Low domestic violence, highly regulated and channeled.
- High-capacity undemocracy: Low to medium violence, heavily repressed but highly visible when it erupts.
- Low-capacity democracy: Medium violence, prone to rapid escalation due to weak state enforcement.
- Low-capacity undemocracy: High violence, characterized by warlords, bandits, and fragmented tyranny.
4. Political entrepreneurs and violent specialists drive the escalation of conflict.
The genuinely effective specialist deploys threats of violence so persuasively that others comply before the damage begins.
Key political actors. Two types of actors play pivotal roles in organizing and escalating collective violence: political entrepreneurs and specialists in violence. Political entrepreneurs are organizers who specialize in activating boundaries, connecting previously separate networks, and representing constituencies. Violent specialists—such as soldiers, police, mercenaries, and gang leaders—control the physical means of inflicting damage and often operate with a degree of autonomy from the state.
Strategic use of force. These actors do not typically seek violence for its own sake; rather, they use the threat of damage as a strategic tool to secure resources, power, or compliance. When political entrepreneurs form alliances with violent specialists, they can rapidly mobilize large populations for destructive campaigns. This coordination often results in exploitation and opportunity hoarding, where a small elite benefits at the expense of the broader group.
Roles in conflict escalation:
- Political entrepreneurs: Activate us-them boundaries and coordinate collective claims.
- Violent specialists: Deploy coercive skills and enforce compliance through threats.
- Joint coalitions: Convert localized, peaceful disputes into highly coordinated, destructive campaigns.
5. Violence is categorized by coordination among actors and the salience of damage.
In fixing on salience and coordination I follow my hunches that: (a) they identify significant, coherent variations in relevant combinations of outcomes and causal mechanisms...
The two-dimensional map. To make sense of the vast array of violent interactions, we can map them along two key dimensions: the salience of short-run damage and the extent of coordination among violent actors. Salience measures the degree to which the infliction and reception of physical damage dominate the social interaction. Coordination represents the extent to which the perpetrators of damage operate under centralized organization, shared scripts, or common signaling.
Six types of violence. This classification yields six distinct types of collective violence, each characterized by unique social processes rather than different human motives. These types range from highly coordinated, high-salience events like coordinated destruction to low-coordination, low-salience events like scattered attacks. Understanding where an event falls on this map helps identify the specific causal mechanisms at play and explains how conflicts mutate over time.
The six types of collective violence:
- Coordinated destruction: High coordination, high salience (e.g., war, genocide).
- Violent rituals: High coordination, high salience, but heavily scripted and contained.
- Broken negotiations: High coordination, low salience (e.g., demonstrations turning violent).
- Opportunism: Low-medium coordination, high salience (e.g., looting, piracy).
- Brawls: Low coordination, high salience (e.g., street fights, road rage).
- Scattered attacks: Low coordination, low salience (e.g., sabotage, clandestine resistance).
6. Highly coordinated violence relies on boundary activation and polarization.
Polarization generally promotes collective violence because it makes the us–them boundary more salient, hollows out the uncommitted middle, intensifies conflict across the boundary, raises the stakes of winning or losing, and enhances opportunities for leaders to initiate action against their enemies.
Boundary activation. Highly coordinated forms of violence, such as coordinated destruction and violent rituals, depend on the rapid activation of "us-them" boundaries. This relational mechanism shifts social interactions so that they organize around a single categorical divide, such as ethnicity, nationality, or religion. When a boundary is activated, it overrides previously peaceful, everyday relationships and divides a population into two opposing camps.
The process of polarization. Polarization accompanies boundary activation by widening the political and social space between claimants and forcing uncommitted moderates to choose a side. Political entrepreneurs accelerate this process by spreading stories that exaggerate the threat posed by the other side, thereby increasing mutual uncertainty and fear. This hollowing out of the middle ground makes cross-boundary violence seem not only justifiable but necessary for collective survival.
Key mechanisms of coordination:
- Boundary activation: Organizing interactions around a single, sharp categorical divide.
- Polarization: Eliminating moderate, cross-boundary ties and forcing group alignment.
- Brokerage: Connecting localized grievances to broader, highly organized networks.
7. Low-coordination violence thrives in unmonitored settings and shifting opportunities.
Everywhere it occurs chiefly at the margins of existing political controls, either within perimeters that authorities leave unpoliced or at points of breakdown in current systems of surveillance and control.
Opportunism and brawls. Unlike highly structured conflicts, low-coordination violence like opportunism and brawls occurs when social controls and surveillance temporarily break down. Opportunism arises when individuals or small groups exploit a sudden shielding from repression to pursue forbidden ends, such as looting during a riot or taking hostages during a civil war. Brawls emerge spontaneously within previously nonviolent gatherings when small-scale disputes escalate through rapid signaling spirals.
The role of setting. These low-coordination events are highly sensitive to the physical and social setting, flourishing in unmonitored spaces like crowded highways, red-light districts, or war zones. Because they lack the stabilizing presence of third-party monitors or formal scripts, these interactions are highly volatile and can quickly escalate. However, they also disperse rapidly once formal surveillance is restored or the immediate opportunity for gain disappears.
Characteristics of low-coordination violence:
- Weak or absent scripts: Interactions are highly contingent and unpredictable.
- Lack of third-party monitors: No external forces exist to contain the escalation.
- High volatility: Events can quickly mutate into adjacent forms of violence or disperse entirely.
8. Modern warfare has shifted from interstate conflicts to internal, localized struggles.
Since World War II, then, the world as a whole has taken decisive, frightening steps away from its painfully achieved segregations between armies and civilian populations...
The changing face of war. A profound historical shift occurred in the character of global violence during the second half of the twentieth century. While the first half of the century was dominated by massive, highly organized interstate wars, the post-World War II era has seen a dramatic rise in civil wars, guerrilla conflicts, and state-sponsored campaigns of annihilation. This means that coordinated destruction has increasingly burrowed inside national borders, directly targeting civilian populations.
Drivers of internal conflict. This shift is driven by several global factors, including decolonization, the proliferation of cheap small arms, and the growth of international markets for contraband like drugs and conflict minerals. In low-capacity undemocratic regimes, armed factions can easily fund their rebellions by hoarding valuable, portable resources. Consequently, modern warfare is characterized by irregular forces, paramilitaries, and warlords rather than disciplined, state-controlled national armies.
Key trends in modern global violence:
- Rise of civil wars: Internal conflicts have largely replaced traditional interstate warfare.
- Civilian victimization: The proportion of war deaths suffered by civilians has risen to nearly 90 percent.
- Resource-driven rebellion: Armed groups exploit global trade in contraband to sustain localized violence.
