Final answer:
The flanking method is one of the two primary methods of direct attack on a wildland fire, where firefighters target the fire's flanks to cut off its fuel supply.
Step-by-step explanation:
One of the two primary methods of direct attack on a wildland fire is the flanking method. This method involves firefighters attacking the fire from its flanks, working from the least active part of the fire perimeter towards the most active part. The goal is to cut off the fire’s fuel supply by creating a containment line. This technique can be particularly effective in areas where the fire has a clear direction due to wind or slope. Firefighters use a variety of tools to create a firebreak, including bulldozers, hand tools, and controlled burns to preemptively remove vegetation that could fuel the fire.