Who are Britain’s jihadists?
Approximately 850 people from the UK have travelled to support or fight for jihadist organisations in Syria and Iraq, say the British authorities. About half have since returned to the UK.
This BBC News database is the most comprehensive online record of its kind, telling the story of more than 200 Britons who have died, been convicted of offences relating to the conflict or are still in the region.
The information on these pages has been compiled from open sources and BBC research. Some details have been withheld for legal reasons or are unavailable.
Tap here for the interactive facewall.
More than 100 people have been convicted so far of offences relating to the conflict. Some of the individuals listed above travelled to the region. Others tried to travel but were stopped. Finally, there is a group of people who have been convicted of offences relating to assisting the first two categories.
The individuals listed above are those the BBC has been able to identify by a number of open-source methods. In some cases, it has been impossible to verify to a satisfactory threshold the true identity of the individual.
A further 600 British citizens have been caught trying to enter Syria to join the so-called Islamic State and other extremist groups, the former foreign secretary Philip Hammond has said.
Men, women and even schoolchildren, all from a wide range of social backgrounds, have been drawn into the Syrian civil war. They have gone to fight or to help build what IS has called a 'caliphate.' Others have provided support from the UK.