What is the first step that should be considered in deploying attack lines to control a fire?

The first step in deploying attack lines to control a fire is focusing on the initial attack line. The initial attack line is critical because it is the first line of defense against the fire and is designed to directly combat the flames and suppress the fire's growth. This line is typically deployed to protect the occupants, firefighters, and the structure itself, making it essential in the initial phase of fire response.

The effectiveness of the initial attack line can significantly influence the outcome of the firefighting operation. It allows the incident personnel to quickly knock down the fire, thereby minimizing damage and enhancing safety for both firefighters and any potentially trapped individuals. The initial attack line is often deployed based on a thorough assessment of the situation, including the fire's location, size, and the potential for rapid spread.

In contrast, options such as secondary attack lines, supply lines, and support lines serve different purposes and are used after the initial attack has begun or additional fire suppression resources are required. Secondary lines might be put in place for additional support, supply lines ensure a continuous water source, and support lines are utilized for various tasks, but none are as foundational as the initial attack line in the first response to a fire.