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Greek Police Arrest Far-Right Youth Activists in Thessaloniki


Police on Wednesday arrested 25 people, including 12 minors – alleged members of the Nationalist Youth of Thessaloniki who are accused of committing robberies, theft and violence in Greece’s second largest city.

“Essentially, this is a criminal organisation that, beyond political motives and motivations, engages in criminal acts,” Greece’s Minister of Citizen Protection, Michalis Chrisochoidis told a press conference with the Thessaloniki police chief. 

Nationalist Youth of Thessaloniki was founded in 2016, and initially collaborated with the fascist group Holy Battalion 2012. It operated an account on the X social media platform under the name Defend Salonica, which ceased to operate on Wednesday. Its posts, which date back to 2020, included videos of its members burning the Turkish flag, anti-migrant messages and photos of protests against the conversion of Istanbul’s Hagia Sophia into a mosque.

There were also photos insisting “Macedonia is Greek” – a slogan referring to the use of the name North Macedonia by Greece’s northern neighbour. In 2018, Athens and Skopje signed a landmark agreement which ended the nearly three-decades-long “name” dispute between the two. Macedonia changed its name to North Macedonia but the identity of its majority population remained Macedonian. The compromise agreement still raises hackles in both countries.

The Nationalist Youth of Thessaloniki group was allegedly set up at the Vocational High School in Evosmos, a suburb of the city. In 2022, the 5th Association of Secondary Education Officials of Thessaloniki condemned the actions of members of fascist groups at the Vocational High School of Evosmos after they attacked students who were protesting, distributed flyers with nationalist content and stuck up posters of nationalist groups.  

The group has also been accused of being involved in the beating of a 15-year-old refugee student at another school, the Intercultural High School of Evosmos in December 2021.

Rizospastis, a Greek daily newspaper owned by KKE, the Greek communist party, reported that the Nationalist Youth of Thessaloniki threw Molotov cocktails, firecrackers, stones and crowbars at students, parents, and teachers gathered outside a vocational school in Stavroupoli, another suburb of Thessaloniki, in September 2021. In October 2021, the group allegedly attacked members of the KKE with chains and tasers.

Incident Details

Type of Incident: Arrest
Date of Incident: May 7, 2025
City: Thessaloniki
Country: Greece

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About Sentinel

SENTINEL is a European project funded by the European Commission and led by the Security and Crisis Centre (SACC by EJC), the security arm of the European Jewish Congress. It brings together the International Centre for Counter-Terrorism (ICCT), national-level Jewish communities from Austria, Czech Republic, Hungary, Italy, and Spain, the European Union of Jewish Students, with the support of the Italian Carabinieri and the Police Presidium of the Czech Republic.

The project is designed to strengthen the protection of Jewish places of worship across the European Union through a coordinated set of activities over a three-year period.

SENTINEL will harness AI-enhanced open-source intelligence to monitor and assess current, emerging, and future threats. It will also equip Jewish communities with practical tools, including a mobile security application with a panic button and an interactive map built on real-time incident data.

Training and capacity-building are at the core of the project. These include scenario-based security exercises, crisis management seminars, and both in-person and online training sessions for community security trustees. SENTINEL will also organise EU-wide and local conferences to foster collaboration between Jewish communities, public authorities, and law enforcement agencies.

Complementing these efforts, national and local workshops will promote knowledge-sharing and preparedness, alongside pilot training programmes for law enforcement. A dedicated podcast series will help raise awareness by exploring threat assessments and potential responses.

With its wide-reaching and inclusive approach, SENTINEL will directly benefit to Jewish communities across 23 EU Member States, enhancing resilience, strengthening preparedness, and building long-term cooperation with law enforcement to meet today’s evolving security challenges.