Islamic State of Iraq and Syria (ISIS)

As the UK joins the US and regional allies in the fight against ISIS, Chatham House experts analyse how the group has made territorial gains, the regional and international response and the global implications of the crisis. 


There is much confusion about ISIS in international policy circles and better understanding of the phenomenon is crucial.

All the opposing forces in the region have suddenly found themselves on the same side against ISIS.

In this new alignment, some voices are calling for western re-engagement with the Assad regime in Syria and a shift away from America’s traditional allies among the Gulf states in favour of Iran.

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