Reference Aid: ISIS and al-Qa‘ida-Inspired Homegrown Violent Extremists

This reference aid is about homegrown violent extremists (HVE) in the United States. These individuals are most frequently supporters of the Islamic State of Iraq and ash-Sham (ISIS), al-Qa‘ida, or designated foreign terrorist organizations (FTO) allied with these two groups.a,b It also discusses HVEs’ connections to FTOs, participation in multiple types of terrorism activities, historical attack data and recent examples of lethal attacks, targeting and tactical trends, locations, demographics, and common behavioral indicators during their radicalization to violence.