What is the most significant benefit of conducting full-scale joint operational drills with external emergency services prior to a large event, beyond familiarization with the venue?

The most significant benefit of conducting full-scale joint operational drills with external emergency services prior to a large event, beyond familiarization with the venue, is the validation and optimization of inter-agency communication, command, and operational integration under simulated stress conditions, which reveals critical systemic vulnerabilities far beyond mere venue familiarity. This directly addresses the complex dynamics of multi-agency cooperation rather than static environmental knowledge. Inter-agency communication refers....