Wanton and senseless? The logic of massacres in Algeria

I use a rationalist framework to explore an issue typically framed and understood as irrational: large-scale violence against civilians in the context of civil wars. More specifically, I focus on the massacres of civilians in Algeria and seek to uncover the logic that drives such actions. The main thesis is that these massacres are not irrational instances of random violence motivated by extremist Islamist ideology, as they are typically described in the media; they can be understood instead as part of a rational strategy initiated by the Islamist rebels aiming to maximize civilian support under a particular set of constraints. Mass, yet mostly targeted and selective, terror is used to punish and deter defection by civilians in the context of a particular strategic conjuncture characterized by (a) fragmented and unstable rule, (b) mass civilian defections toward the incumbents and (c) escalation of violence. I check this thesis against the available evidence, address puzzles such as the identity of the victims and the behavior of the army, extend it to similar massacres in other countries, draw a number of implications and discuss a research agenda.