Governments throughout Europe have expressed fears that foreign fighters in Syria will return to their home countries as committed terrorists with deadly skills and violent intent. How plausible these fears are has been subject to debate.
My view is that the fears are well-founded, and that we should no longer be asking whether any European fighters in Syria will return to attempt terrorist attacks, but how many currently have.
To help keep track of open-source information on this, this post provides a list of alleged violent plots in Europe involving people who had joined jihadist groups in Syria.
I plan to regularly update the list as more incidents occur, or as more information on these incidents comes out, and may expand the list to include Australia and North America if plots occur there.
To be included in this list, the incident must meet the following criteria: 1. It must involve at least one person who has allegedly returned from fighting with jihadist groups in Syria. 2. It must involve violence or an alleged plan for violence. Simple threats of violence are not included. 3. The violence must have occurred, or been intended to occur, in Europe. This means the many cases of people charged for having fought in Syria, attempting to fight, or supporting fighters, are not included, even if they make some references to wanting to carry out violence in Europe. Also not included is the kidnapping and abuse of European journalists in Syria by British jihadists. 4. The violence or allegedly planned violence must have an apparent ideological motivation. If a returning fighter was to assault someone over an unrelated dispute, it would not be included.
The publicly available evidence for each of these cases varies, and none have seen completed trials. This means that none can be considered definitive, although the Nemmouche case in Belgium looks strong.
For those interested in more information on the Syria blowback, I recommend these articles by Lisa Lundquist and Raff Pantucci, which were useful for this post. Finally, please suggest any incidents I may have missed which meet the above criteria.
List of alleged violent plots in Europe involving Syria returnees:
- October 2013: UK police arrested four men and charged them with terrorism offences. They were accused of planning a “Mumbai-style plot” in London, meaning a sophisticated mass shooting of civilians. The men had reportedly returned from Syria, and may have met there. UK authorities have kept a tight hold on information about the case.
- November 2013: Police in Kosovo arrested six terror suspects they accused of planning an attack, while a seventh remains at large. Authorities said they had been monitoring the suspected cell for over three months, had gathered evidence through video surveillance, phone tapping, and email monitoring, and had seized firearms and material for making explosives. Two of the suspects, had allegedly fought alongside Syrian jihadists, possibly Jabhat al-Nusra.
- March 2014: French police claimed to have foiled an “imminent” terror attack planned on the French Riviera. Earlier in the year, Italian police had arrested, and extradited to France, a 23-year old man who had returned from Syria. He was allegedly caught with soda cans filled with explosives, nails, nuts and bolts. He was also allegedly linked to the Cannes-Torcy cell, which was suspected of planning a grenade attack on a Jewish business in September 2012.
- May 2014: Dutch police arrested a 21-year-old man who fought in Syria and was allegedly about to commit armed robbery “to finance jihad”. He faces charges of planning a terrorist attack and illegal firearms possession.
- May 2014: A gunman murdered four people near the Jewish Museum of Belgium in Brussels. On 30 May a 29-year old Frenchman named Mehdi Nemmouche was caught, reportedly with guns, ammunition, and a video claiming responsibility for the attack. Nemmouche had also allegedly fought in Syria, with the former al-Qaeda affiliate the Islamic State of Iraq and al-Sham (ISIS). If the allegations prove true, these are the first deaths to occur in a Europe as a result of the foreign fighter flow into Syria.
- June 2014: Police in Kosovo arrested three men and charged them with terrorism offences, reportedly involving planned “suicide attacks targeting mass gathering places in order to cause widespread bloodshed and casualties”. The three men had allegedly been recruited by ISIS.
Update 1: This post initially said that the names for the terror suspects in Plot 1 had not been released. However their names had actually been released following a High Court decision earlier this month , though most of the trial will remain secret. In Plot 3 I initially said the suspect was arrested by French police, but he was actually arrested by Italian police in January and extradited to France. I fixed these errors on 30 June 2014, thanks to Raffaello Pantucci for pointing them out.
Update 2: This post initially included the following incident:
June 2014: French police arrested four citizens, two of which had allegedly returned from Syria. They were wanted for “questioning by an anti-terrorism judge for alleged criminal association in view of preparing a terror act”. I have not found any further information, such as what groups in Syria they may have been involved with.
However, Timothy Holman alerted me that it may not meet Criteria 3 (that the planned violent action must be in Europe).
In the French press sources I have the arrests are related to a foreign fighter facilitation network based in Nimes that may have sent up to 20 persons to Syria.
See for example http://www.midilibre.fr/2014/06/19/six-ans-requis,1010853.php or http://www.francetvinfo.fr/monde/revolte-en-syrie/deux-jihadistes-francais-arretes-a-leur-retour-de-syrie_625419.html
I agree that the use of the term in the English article “It said the four were wanted for questioning by an anti-terrorism judge for alleged criminal association in view of preparing a terror act, without specifying.” suggests a terrorist act but the articles in English and French do not designate a target, nor method of attack etc. In Le Monde, it states, “association de malfaiteurs en vue de préparer des actes de terrorisme” without giving details of attack planning but writing about the number of persons sent to Syria.
I have removed this incident from the list (on 30 June 2014) for now, hopefully more information will come out that clears it up.