Political violence divides into competitive, reactive, and proactive forms.

Evidence

Political violence, in Tilly, may take three forms (1975, pp. 506–507): competitive (two groups attack each others’ resources), reactive (a group responds to attack), or proactive (a group attacks to obtain resources). Each of these types comes in modern (associational) and nonmodern (communal) versions; therefore, types of political violence can be distinguished historically and associated with social development—but not at all in the manner of Huntington or Johnson. — John T. Jost and Jim Sidanius, Political Psychology, 4386

Categorization

• DEFINE: Useful and clean tripartite taxonomy of political violence — a portable classification for later analysis.
• SHARE: Worth sending to anyone working in political-science or conflict studies taxonomy.