Final answer:
The tactic being described is called 'Structure Protection'. It involves using control lines and large water streams to prevent the spread of fire and protect structures.
Step-by-step explanation:
The tactic being described is called 'Structure Protection'.
Structure Protection is a wildland urban interface firefighting tactic that involves creating control lines and using large water streams from fixed water supplies to prevent the spread of fire. The primary goal of Structure Protection is to extinguish structure fires, protect other exposed structures, and reduce the production of embers that can ignite new fires.
For example, firefighters may establish control lines by clearing vegetation around structures and using fire-resistant materials for roofs and structures. They may also use large volumes of water from hydrants or portable water tanks to douse the flames and prevent the fire from reaching the structures.