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Multiple Memorials in Mainz Defaced

Unknown individuals have vandalized two memorial sites in Mainz. Stolpersteine (stumbling stones) were defaced with an unidentified substance, and a monument in Gonsenheim was spray-painted with political graffiti.

On the morning of Wednesday, December 17, Mainz police received two reports of damage to commemorative sites, according to the Mainz Police Headquarters.

At around 9:20 a.m., officers were alerted that several Stolpersteine on Taunusstraße, near house number 23, had been smeared with a thick white liquid. The substance was removed with water, and according to current assessments, the brass plaques did not sustain permanent damage. In addition to a charge of property damage, police are also considering whether the offense constitutes “defamation of the memory of the deceased.”

Later that same morning, another case of vandalism was reported at a memorial on Juxplatz in Mainz-Gonsenheim. Unknown individuals had extensively defaced the large, multi-part monument with pink spray paint.

Police documented several politically charged graffiti messages, including two instances of the slogan “No mourning for Nazis,” the acronym “ACAB,” and an anarchist symbol (a circled “A”) sprayed onto the memorial. Investigations for property damage are underway, and police have secured photographic evidence. So far, there are no leads on the perpetrators.

The Gonsenheim monument commemorates local residents who died in past wars. It had already been vandalized five years ago with similar pink paint and the slogan “No tribute for murderers.”

Incident Details

Type of Incident: Vandalism
Date of Incident: December 17, 2025
City: Mainz
Country: Germany

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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.