Terrorism and ideologically inspired violence are persistent and serious threats to U.S. national security. This report uses interviews to explore why and how 32 individuals joined extremist organizations and how some of them exited these groups.

The topics of extremism, violent extremism, and radicalization leading to terrorism have constituted an increasingly prominent area of policy interest and donor support in recent years, globally and in the western Balkans. Counterterrorism initiatives, as well as efforts to prevent and counter violent extremism (P/CVE), often reveal the need for broader reform, peacebuilding, and democratization strategies. While foreign donors and domestic authorities tend to focus on ISIS-inspired violent jihadism, in many countries in the region, and particularly in the case of Serbia, there are other forms of extremism—namely far-right nationalism, violent hooliganism, and neo-Nazi movements—that are often considered to be more of an imminent threat, particularly as they are often viewed as examples of “normalized” political expression. The dynamics of reciprocal radicalization, in which competing extremisms feed off of, reinforce, and even need one another, can create seemingly intractable conflict spirals of escalation and violence. This volume explores these dynamics in Serbia through original research, taking fresh perspectives that demonstrate that Serbia is vulnerable to many types of extremism, which can best be prevented by achieving the liberal, democratic, rights-based reforms that have remained elusive for more than two decades. This broad and holistic approach is important for Serbia and its neighbors as the security lens through which most research has been focused to date has done little to explain the deep and structural dynamics of radicalization and extremism in the region.

Gathers essays by area specialists to provide an assessment of contemporary American extremism, exploring the views of each group in context and examining the tension between civil liberties and possible threats to society.

In an unsettling time in American history, the outbreak of right-wing violence is among the most disturbing developments. In recent years, attacks originating from the far right of American politics have targeted religious and ethnic minorities, with a series of antigovernment militants, religious extremists, and lone-wolf mass shooters inspired by right-wing ideologies. The need to understand the nature and danger of far-right violence is greater than ever. In American Zealots, Arie Perliger provides a wide-ranging and rigorously researched overview of right-wing domestic terrorism. He analyzes its historical roots, characteristics, tactics, rhetoric, and organization, assessing the current and future trajectory of the use of violence by the far right. Perliger draws on a comprehensive dataset of more than 5,000 attacks and their perpetrators from 1990 through 2017 in order to explore key trends in American right-wing terrorism. He describes the entire ideological spectrum of the American far right, including today’s white supremacists, antigovernment groups, and antiabortion fundamentalists, as well as the histories of the KKK, skinheads, and neo-Nazis. Based on these findings, Perliger suggests counterterrorism policies that can respond effectively to the far-right threat. A groundbreaking examination of violence spawned from right-wing ideologies, American Zealots is essential reading for everyone seeking to understand the transformation of domestic terrorism.

How big is the threat posed by American ISIS supporters? How many Americans have joined ISIS and how many want to return to the United States? Compared to participation by Americans in other jihadist groups, the scale of American involvement in jihadist activity today is unprecedented. This book, from one of the leading counter-terror centres, draws on first-hand interviews with former American Islamic State members and law enforcement officials who tracked them, and includes detailed analysis of the court cases against them and their social media presence. Homegrown reveals how and why ISIS was able to radicalize and recruit a new generation of jihadist sympathizers in America.

Countering violent extremism consists of various prevention and intervention approaches to increase the resilience of communities and individuals to radicalization toward violent extremism, to provide nonviolent avenues for expressing grievances, and to educate communities about the threat of recruitment and radicalization to violence. To explore the application of health approaches in community-level strategies to countering violent extremism and radicalization, the National Academies of Sciences, Engineering, and Medicine held a public workshop in September 2016. Participants explored the evolving threat of violent extremism and radicalization within communities across America, traditional versus health-centered approaches to countering violent extremism and radicalization, and opportunities for cross-sector and interdisciplinary collaboration and learning among domestic and international stakeholders and organizations. This publication summarizes the presentations and discussions from the workshop.