Question to the Home Office:

To ask Her Majesty’s Government how many British nationals are estimated to have travelled abroad to Syria and Iraq to join extremist groups since October 2014; how many have since returned to the United Kingdom; and what is the total number of such people who remain in Syria.

Around 700 people who are of concern to the Police and Security Services are thought to have travelled to the region since the start of the conflict. We estimate that around half of those have returned.