Explaining the pattern of “war on drugs” violence in the Philippines under Duterte

A national “war on drugs” under former Philippine President Rodrigo Duterte killed an estimated 12,000 to 30,000 victims. Duterte used state terror tactics, generating an unprecedented level of violence within a broader process of democratic backsliding. The violence peaked early, within the first few months of his term of office, then declined and remained low for years afterwards. How do campaigns of large-scale state violence decline? This article explores the context-specific drivers of the drug war's implementation in the Philippines. It presents findings from a model predicting violence escalation and de-escalation using a Poisson regression to estimate the weekly number of killings from 2016 to 2021. The study's main finding is that the violence declined, and remained low throughout the rest of Duterte's term, due to the mobilization of accountability mechanisms—particularly over corruption controversies. This study offers insights into how resistance can impede autocratization, even in weak democracies.