02:32The ExplanationUnderstanding the Islamic State groupBBC World Service Duration: 20 minutes Sun 26th Dec 2021, 02:32 on BBC World Service Americas and the CaribbeanAvailable for over a yearListen nowAnu Anand talks to Quentin Sommerville about the rise, fall and potential re-emergence of the Islamic State group.GenresFactualFormatsDocumentariesBrandThe Explanation Source: BBC Online