Following the Iranian Revolution of 1979 and the establishment of the Islamic Republic of Iran, several regions in Eastern Kurdistan witnessed extensive acts of violence and significant loss of civilian lives. The Iranian Regular Army, the Islamic Revolutionary Guard Corps, and Mujahedin, a pro-regime Azeri militia group, formed a coalition that committed the crimes. Eastern Kurdistan’s national movement grew stronger following the revolution. Nevertheless, to crush the Kurdish movement and consolidate its power in Kurdistan, the Islamic regime organized and supported acts of extreme violence, including massacres and other forms of mass killings in Eastern Kurdistan. This development, defined by village massacres, had a massive impact on Kurdistan’s rural areas. This chapter will provide a thorough analysis of the coercive measures employed by the Iranian state to aggressively suppress the Kurdish people and their resistance movement in the decade that followed the Iranian Revolution of 1979. To achieve this, the chapter will incorporate various instances of massacres and mass executions and examine the reasoning behind these crimes committed by the Iranian regime in Eastern Kurdistan.