Which operation is used when the fire is too large to be controlled by an offensive attack?

• A. Offensive Operations
• B. Handlines Operations
• C. Defensive Operations
• D. Size Up

Answer: (C)

Defensive operations are used when a fire has grown too large to be controlled by an offensive attack. The priority shifts from trying to push the fire with interior or direct exterior lines to protecting people and property from a safe position. This means establishing a perimeter, keeping crews out of immediate danger, and using exterior streams or aerial master streams to contain and prevent further spread, while exposures and life hazards are managed from a distance. The decision to switch to defensive tactics comes from a rapid scene size-up that recognizes the risks of continuing an interior attack and the greater value in protecting unburned areas and nearby structures.

Offensive operations would be pursued only if conditions permit a safe interior or direct attack, which isn’t the case once the fire is beyond control. The term handlines operations describes a method of attack using hoses, but it’s a tactic within the broader approach and not the overall strategy when the fire is too large. Size-up is the ongoing assessment that informs the chosen strategy, not the operation itself.