A method of indirect attack in which control line is constructed parallel to the fire edge at a safe distance; typically includes burning out the unburned fuel.

A method of indirect attack in which control line is constructed parallel to the fire edge at a safe distance; typically includes burning out the unburned fuel.

• A. Undercut Line
• B. Parallel
• C. Pincer
• D. Cold trailing

Answer: (B)

Indirect attack relies on creating a safety buffer from the fire and using ignition to remove the fuel the fire would burn. Building a control line parallel to the fire edge at a safe distance gives that space, and then burning out the unburned fuel between the line and the fire reduces the available fuel for the fire to consume. This approach establishes a containment boundary while keeping firefighters away from the active edge, making it easier to control the fire as the burned area cools and the line holds. The other tactics involve different geometries or ignition plans: an undercut line is a slope-based maneuver not described here, a pincer closes in from multiple directions toward the fire, and cold trailing is a separate ignition method.

Indirect attack relies on creating a safety buffer from the fire and using ignition to remove the fuel the fire would burn. Building a control line parallel to the fire edge at a safe distance gives that space, and then burning out the unburned fuel between the line and the fire reduces the available fuel for the fire to consume. This approach establishes a containment boundary while keeping firefighters away from the active edge, making it easier to control the fire as the burned area cools and the line holds. The other tactics involve different geometries or ignition plans: an undercut line is a slope-based maneuver not described here, a pincer closes in from multiple directions toward the fire, and cold trailing is a separate ignition method.