Which of the following is NOT considered one of the four basic modes of fire attack for structural firefighting?

In the context of structural firefighting, the four basic modes of fire attack typically include defensive, offensive, combination, and sometimes interior as a strategy. However, the term "interior" is not widely recognized as a distinct mode in the same way that the others are framed.

Defensive attack focuses on protecting exposures and stopping fire spread, often used when the fire is too dangerous to engage directly or when there's a significant risk to firefighters. Offensive attack refers to the direct engagement with the fire, typically involving entry into the structure to extinguish the fire at its source. Combination involves using both offensive and defensive tactics depending on the situation, allowing flexibility based on the evolving conditions of the fire.

Since "interior" isn't categorized among these widely accepted modes, it is recognized as not being one of the four basic fire attack modes. Understanding these tactics and their definitions is essential for effective firefighting and emphasizes the structured approach that firefighters take in addressing various situations.