Which of the following best describes offensive (interior) vs defensive (exterior) fire attack strategies?

• A. Offensive aims to extinguish from inside and search for occupants; defensive protects exposures from outside; choice guided by fire growth, occupant status, and structural integrity.
• B. Offensive means ventilating only; defensive means suppressing from inside with no search.
• C. Offensive focuses on protecting exposures; defensive aims to locate and extinguish fuel sources.
• D. Offensive uses only water; defensive uses foam as primary agent.

Answer: (A)

Offensive interior attack is about working from inside the structure to get the fire under control while also actively searching for occupants who may need rescue. Defensive exterior attack focuses on keeping the fire from spreading to exposures and neighboring areas by operating from outside and protecting surroundings. The best description captures this core distinction and the real decision factors firefighters use to choose strategy: fire growth, whether occupants are in danger or trapped, and the structural integrity of the building. If the fire is rapidly growing, occupants are at risk or trapped, and the structure remains solid enough to support interior work, an interior attack is pursued. If the building is unsafe to enter, occupants are already accounted for or not present, and there’s a need to protect exposures and prevent fire spread, exterior-focused defense becomes the priority. The other options mix up the roles or rely on operational specifics (like ventilation or agents) that don’t define the fundamental difference between interior and exterior attack.