A crisis management exercise was conducted on Wednesday, September 30, at the Bugey nuclear power plant in the Ain department of France. Over 150 individuals participated in the training, organized by the Prefecture of the Ain, local law enforcement, the Departmental Fire and Rescue Service of the Ain (SDIS 01), the Electricity Transmission Network (RTE), and EDF, the French electricity company. The exercise aimed to evaluate how different agencies would respond to a complex and challenging scenario. The scenario, revealed only at the start of the exercise, involved two separate events that required the activation of crisis management protocols. The first simulated a technical issue affecting the plant's infrastructure, with EDF's operational and expert teams responding to the situation. The second scenario involved an intrusion on the site, prompting the plant's security teams and law enforcement to coordinate a response. Both situations were designed to test the preparedness and coordination of the various involved parties. Under the leadership of the Prefecture of the Ain, several specialized units took part in the exercise. These included the Specialized Protection Squadron of the Gendarmerie (PSPG), demining teams, the National Gendarmerie Intervention Group (GIGN), and the SDIS of the Ain. The GIGN, known for its role in high-risk operations, and the PSPG, responsible for protecting critical infrastructure, played key roles in simulating real-world responses. Elvire Charre, director of the Bugey nuclear power plant, noted that the exercise highlighted the effectiveness of the organizations involved in managing complex situations. Louis-Xavier Thirode, the prefect of the Ain, emphasized that the drill confirmed the readiness of emergency services and reinforced the commitment of all participants to anticipate and manage crisis situations. The insights gained from the simulation will now be used to enhance the preparedness of responders and improve the overall effectiveness of crisis management procedures.