The rescEU-CBRN-DSIM-IT project is set to strengthen the EU’s capacity to address CBRN threats in the context of large events. This initiative, part of the broader rescEU programme aimed at enhancing disaster preparedness across the EU, within the framework of the European Union Civil Protection Mechanism, aims to provide a fleet of 11 specialized vehicles, including state-of-the-art DSM vehicles for rapid response, mobile laboratories for on-site analysis, and support vehicles equipped for logistics and operations. The modular capacity developed by the project is expected to be deployed in the context of large-scale events in prevention of and response to CBRN incidents and accidents. Additionally, it incorporates Extended Reality (XR) technology for operator training, ensuring a skilled response team ready for deployment to safeguard public health and safety.