Replication Data For: "Civilian Harm and Military Legitimacy in War: Evidence from the Battle of Mosul in Iraq"

The legitimacy of armed forces in the eyes of civilians is increasingly recognized as
crucial not only for battlefield effectiveness but also for conflict resolution and peacebuilding. However, the concept of “military legitimacy” remains under-theorized and its determinants poorly understood. We argue that perceptions of military legitimacy are shaped by two key dimensions of warfare: just cause and just conduct. Leveraging naturally occurring variation during one of the most deadly urban battles in
recent history—the multi-national campaign to defeat the Islamic State in Mosul,
Iraq—we evaluate our theory with a mixed-methods design combining original survey
data, satellite imagery, and interviews. Civilians living in neighborhoods where
armed forces were less careful to protect civilians view those forces as less legitimate
than civilians elsewhere. Surprisingly, these results persist after conditioning on personal experiences with harm, suggesting that perceptions are influenced not only by victimization—consistent with previous studies—but also by beliefs about the morality of armed forces’ conduct and the cause for which they are fighting.