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To better understand the implications of right-wing terrorism in Europe, this analysis asks: how significant is the threat from right-wing terrorism in Europe, particularly compared to other terrorist threats?

To answer this question, the report analyses data from several sources to place the right-wing terrorist threat in a broader context. It builds and analyses a data set of terrorist attacks in Europe from January 2009 to February 2020, which includes a total of 2,241 incidents. It also examines research on terrorism from a wide range of primary and secondary sources, including European government assessments and publications of extremist groups and individuals.

Finally, it includes information from CSIS interviews with European and U.S. government officials.

The first section of this report provides an overview of how terrorism is defined in this study. The second section examines right-wing terrorism in Europe, along with left-wing, religious-based, and ethno-nationalist terrorism. The third section assesses the severity of the right-wing threat in the context of other terrorist threats. The fourth section provides policy implications.

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