Combating Terrorism Center at West Point

Objective • Relevant • Rigorous | February 2017 • Volume 10, Issue 2

FEATURE ARTICLE A VIEW FROM THE CT FOXHOLE The Berlin Attack and GEN John W. the Abu Walaa Network Nicholson

What the connections to the Islamic State could mean for Europe Commander, Resolute Support and Georg Heil U.S. Forces-Afghanistan FEATURE ARTICLE

1 The Berlin Attack and the “Abu Walaa” Islamic State Recruitment Network Editor in Chief Georg Heil Paul Cruickshank

INTERVIEW Managing Editor Kristina Hummel 12 A View from the CT Foxhole: General John W. Nicholson, Commander, Resolute Support and U.S. Forces-Afghanistan Brian Dodwell and Don Rassler EDITORIAL BOARD

Colonel Suzanne Nielsen, Ph.D.

ANALYSIS Department Head

16 The Formation of Hay’at Tahrir al-Sham and Wider Tensions in the Syrian Dept. of Social Sciences (West Point) Insurgency Lieutenant Colonel Bryan Price, Ph.D. Aymenn al-Tamimi Director, CTC 21 The Islamic State’s Western Teenage Plotters Robin Simcox Brian Dodwell Deputy Director, CTC 27 The Islamic State Looks East: The Growing Threat in Southeast Asia Shashi Jayakumar CONTACT 34 The Fulani Crisis: Communal Violence and Radicalization in the Sahel Andrew McGregor Combating Terrorism Center U.S. Military Academy

607 Cullum Road, Lincoln Hall In an extensive interview, General John W. Nicholson, commander of Res- olute Support and U.S. Forces-Afghanistan, stresses the importance of pre- West Point, NY 10996 venting the country from again becoming a platform for international Phone: (845) 938-8495 terrorism, noting counterterrorism operations have almost halved the fighting strength of the - Email: [email protected] ic State’s local afliate. He also outlines the ongoing efort to empower Afghan eforts against the Taliban, saying: “They’re at a bit of a stalemate. The government holds about two-thirds of the popu- Web: www.ctc.usma.edu/sentinel/ lation. The enemy holds a solid 8 to 10 percent. … We think [if] we get to about 80 percent or more, we start to reach a tipping point where the insurgency becomes more irrelevant.” Our cover story by Georg Heil focuses on the deadly truck attack this past December in Berlin by SUBSMISSIONS Anis Amri, a Tunisian extremist suspected of links to Islamic State operatives in . Investigations The CTC Sentinel welcomes submissions. have made clear the danger posed by the radical network he belonged to in northwestern Germany Please contact us at [email protected]. led by an Iraqi preacher named Abu Walaa. It is believed to have recruited dozens to travel to join the Islamic State, communicated extensively with Islamic State operatives in Syria and Iraq, and encouraged attacks on German soil. Heil argues the high level of interconnectedness between these The views expressed in this report are radicals in Germany and the Islamic State has potentially grave implications for European security. those of the authors and not of the U.S. Aymenn al-Tamimi looks at the implications of the recent realignment of rebel and jihadi groups Military Academy, the Department of the in Syria, which created two potentially conflicting power centers revolving around an enlarged Ah- rar al-Sham and Hay’at Tahrir al-Sham, a new al-Qa`ida-aligned umbrella grouping. Robin Simcox Army, or any other agency of the U.S. finds Islamic State plots by pre-teens and teens are increasing in the West, with plotters in contact Government. with the group in a majority of such cases. Shashi Jayakumar examines the growing Islamic State threat to Southeast Asia, arguing the group may pose as big a threat in the future in the East as in the West. Andrew McGregor warns growing clashes between Fulani Muslim herders and settled Chris- Cover: The truck driven by extremist Anis tian communities in could be exploited by terrorist groups and potentially destabilize the Amri through a Christmas market near the entire Sahel-West Africa region. Kaiser Wilhelm Memorial Church in Berlin Paul Cruickshank, Editor in Chief is pictured on December 20, 2016. (Tobias Schwarz/AFP/Getty Images) FEBRUARY 2017 CTC SENTINEL 1 Te Berlin Atack and the “Abu Walaa” Islamic State Recruitment Network By Georg Heil

a4Belgium group in Antwerp;8 Mirsad Omerovic (aka Ebu Tejma) The Berlin truck attack last December by Anis Amri, a in Austria,9 with which the Abu Walaa network was at least loosely Tunisian extremist suspected of communicating with connected;10 and Khalid al-Zerkani’s network in Brussels.11 German Islamic State operatives in Libya, was not just the first investigators believe the Abu Walaa network, operating primarily fatal Islamic State-linked attack on German soil. It out of Dortmund and Duisburg in North Rhine-Westphalia and also exposed the danger posed by a radical network Hildesheim in Lower Saxony, partly financed itself by “stealing from that Amri belonged to in northwestern Germany. The the infidels” through burglaries, much like the Zerkani network, as well as with fraudulent loans.12 network, led by Iraqi preacher Abu Walaa, is believed to This article draws on court documents, investigative files, and have recruited dozens to travel to join the Islamic State, interviews with German counterterrorism ofcials and months of communicated extensively with Islamic State operatives investigative reporting to outline Amri’s background, radical tra- in Syria and Iraq, and encouraged attacks on German jectory, execution of the Breitscheidplatz attack, and ties to the Abu soil. What investigators are learning about the network Walaa network. It details key figures of the Abu Walaa network and could have severe implications for European security. how they operated, indoctrinated, recruited, and communicated. It then also examines what is known about the links between the Abu n December 19, 2016, Tunisian extremist Anis Amri Walaa network and Islamic State operatives in Syria. Finally, this hijacked a heavy truck after shooting and killing its article examines the implications for the threat moving forward in driver and drove it through the Christmas market Germany and Europe. in Berlin’s Breitscheidplatz, killing 11 and wounding 55. Four days later, the Islamic State-afliated news Anis Amri’s Pathway to Terror Oagency Amaq released a video of Amri in which he had pledged al- Anis Ben Othmane Amri was born on December 22, 1992, in legiance to Islamic State leader Abu Bakr al-Baghdadi and vowed to Tataouine, . He grew up in Oueslatia in the Kairouan Gov- slaughter “crusaders who are shelling the every day.”1 The ernorate in northern Tunisia13 with three brothers and five sis- Breitscheidplatz attack was the first confirmed Islamic State-related ters.14 Though the area where he grew up is known to be a salafi terror attack in Germany that resulted in fatalities. stronghold—where groups like Ansar al used to hold public Prior to the attack, German law enforcement agencies were well recruitment drives15—there is no indication that he became radi- aware Amri was a sympathizer of the Islamic State and had talked calized while living in Tunisia. Instead, he was a troublemaker who about committing an attack.2 They were also aware that he was dropped out of school when he was 15, lived of occasional jobs, and in contact with both Islamic State operatives outside of Germa- turned to drugs and alcohol. “My son Anis drank and stole, but he ny3 and the so-called Abu Walaa network, a recruiting network for was radicalized in Europe,” Amri’s father said after the Berlin at- the Islamic State in Germany headed by 32-year-old Iraqi salafi tack.16 In 2010, Amri stole a vehicle and was sentenced to prison by preacher Ahmad Abdulaziz Abdullah Abdullah, known to his fol- a Kairouan court.17 But amid the chaos of the Tunisian revolution, lowers as Abu Walaa.