The third standard firefighting order requires firefighters to base their actions on what?

The third standard firefighting order emphasizes the necessity for firefighters to base their actions on the current and expected behavior of the fire. This principle is crucial because understanding how a fire is likely to change allows firefighters to make informed decisions that prioritize safety and effectiveness. By assessing both the existing conditions and anticipating how factors such as weather, topography, and fuel types may affect the fire's behavior, firefighters can devise strategies that minimize risks and optimize their response to protect lives and property. This focus on the fire's dynamics ultimately aids in effective incident management and ensures that firefighters are prepared for evolving conditions on the ground.