Because there was a fight and the narrator (soldier) thought that they would come on the bridge to attack local peoples too.

Introduction:
In the story, the narrator encounters a man who is desperately searching for a mysterious figure known as the "Yellow Wallpaper." The narrator, curious about the man's motives and intentions, decides to engage in a conversation to gather more information. The narrator poses a series of questions to the man in an attempt to understand the significance of the Yellow Wallpaper and the man's obsession with it.

The narrator's questions:
1. "Can you tell me more about the Yellow Wallpaper?"
The narrator starts by asking the man to provide more details about the Yellow Wallpaper itself. This question aims to gain insight into the wallpaper's characteristics, appearance, and any peculiarities that might be associated with it.

2. "Why are you searching for the Yellow Wallpaper?"
Next, the narrator inquires about the man's motive behind his relentless search for the Yellow Wallpaper. This question intends to uncover the man's underlying reasons and the significance he attaches to finding it.

3. "What do you hope to achieve by finding the Yellow Wallpaper?"
The narrator further probes the man's intentions and aspirations related to the Yellow Wallpaper. This question seeks to understand what the man expects to gain or accomplish upon locating the elusive wallpaper.

4. "Have you encountered any clues or information about the Yellow Wallpaper?"
The narrator's next question focuses on the man's progress in his search. By asking about potential clues or information he may have come across, the narrator attempts to assess the man's level of knowledge and the extent of his investigation.

5. "Can you explain why the Yellow Wallpaper is so important to you?"
In this question, the narrator aims to delve into the man's emotional connection and attachment to the Yellow Wallpaper. Understanding the significance it holds for him may shed light on his motivations and the impact of finding it.

Conclusion:
By posing these questions, the narrator seeks to unravel the man's obsession with the Yellow Wallpaper. Through a detailed conversation, the narrator hopes to gain a deeper understanding of the man's mindset, motivations, and the role the Yellow Wallpaper plays in his life.

From which chapter?