This working paper presents an overview of Jihadi related cases in Denmark between 1990 and 2006. The first part contains a summary of the known and verified cases and incidents and, furthermore, provides brief background information on international linkages. The second part attempts to answer three questions, all based on the empirical evidence presented: Which trends can be traced from the early 1990s to the present? What may have changed in the composition of the Jihadi environment in terms of ideological alignment, strategic perspectives and interaction with other Jihadists internationally? How did the radicalization processes take place? How did Danish citizens or residents become involved in Jihadi activities? Can one or more patterns of radicalisation be identified? To what extent were the Jihadists successful? Have they acquired a larger following? Did they have any actual impact on the battlefields?