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The Threat of ISIS to the UK: RUSI Threat Assessment

Raffaello Pantucci and Clare Ellis
Briefing Papers, 3 October 2014
International Security Studies, Terrorism, Terrorism and Conflict, UK Counter-terrorism, Tackling Extremism, UK
The Islamic State of Iraq and Syria (ISIS) is well financed, well equipped and brutal. It is also a plausible threat to the UK

The group operates across large swathes of territory in Syria and Iraq, where the sustained conflicts continue to attract large numbers of foreign fighters. Official estimates suggest the total travelling to the region has now exceeded 15,000, including 500 from the UK. It is unclear what proportion has joined ISIS, though it is understood that a majority of these UK citizens have joined its ranks. This briefing argues that it is this community of foreign fighters that poses an immediate terrorist threat to the West.

As the UK joins the coalition against this increasingly dominant jihadist force, understanding the scale of the threat and the complexity of the challenge is crucial. This briefing analyses four key questions:

  • What is the group’s current narrative and interest?
  • How is this narrative being heard in the UK?
  • What would change to make ISIS refocus from its regional concentration
    to a global one?
  • How might a new ‘awakening’ movement be stimulated in Iraq?

This briefing provides an objective view on ISIS and some judgements about its current threat trajectory. It draws on a series of discussions held at RUSI, which involved internal and external expertise, to come to some key judgements on the group.

About the Authors

Raffaello Pantucci is Director of International Security Studies at RUSI.

Clare Ellis is a Research Analyst in the National Security and Resilience Department at RUSI.

 

Raffaello Pantucci
Senior Associate Fellow

Raffaello Pantucci's research focuses on terrorism and counter-terrorism as well as China's relations with its Western neighbours... read more

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