What communication is made when changing to a defensive strategy?

When a fire incident transitions to a defensive strategy, the communication made is categorized as "emergency traffic." This term is specifically used to convey immediate and critical information regarding the safety and the operational status at the scene, particularly when conditions have worsened or when the threat to personnel and resources increases.

In this context, changing to a defensive strategy signifies a shift from active firefighting tactics aimed at extinguishing the fire to a focus on protecting life and property from the fire's spread. By declaring "emergency traffic," command is ensuring that all responding units are aware of the change in strategy and are attuned to potential hazards, therefore maintaining safety and coordination among crews.

Such communication emphasizes the urgency of the situation and alerts all personnel to prioritize their actions and maintain situational awareness. The need for clear and distinct communication during this pivotal change is vital to ensure that everyone involved understands the gravity of the situation and can adjust their operations accordingly.