Which method of fire suppression involves creating barriers to restrict fire spread?

The method of fire suppression that involves creating barriers to restrict fire spread is the indirect attack. This technique is used primarily to control fire behavior by using natural or constructed barriers to contain the fire's advance, thereby preventing it from spreading to unburned areas.

In an indirect attack, firefighters may create a line of control by using tools to remove flammable vegetation or creating fire breaks, effectively stopping or slowing the fire's movement. This method is particularly useful in wildland firefighting scenarios where access may be limited and direct engagement with the flames could be dangerous.

Understanding the principle behind the indirect attack highlights the importance of fire management and control techniques during firefighting operations, as it allows for safer engagement with active fires while minimizing the risk to personnel and preventing further property loss.