A major civil defense exercise is underway, involving over 2,000 participants. The goal of this effort is to prepare for potential disruptions to essential services. Volunteers and students are taking part in a simulated scenario where critical infrastructure has been compromised.

The exercise includes setting up a safe zone in a cave, where people can seek refuge. Participants are working to measure radiation levels and create a temporary shelter. Further information about this exercise is available, including details about the simulated threats and the response efforts.