Ambiguity in "The Sniper" by Liam O' Flaherty

Ambiguity in The Sniper By Liam O’Flaherty The Irish Civil War was a very bad time when people were fighting brothers and other relatives. In “The Sniper” the main character is on a roof top sniping at someone across the street. The man gets hit and fakes his own death to fool the other man. He pulls it off, and the man across the street exposes himself for an open shot. The sniper hits him and kills him. The man is dead on the street and the sniper has an urge to see who it is. He rolls the man over and discovers it’s his brother. But in the story it is the civil war so whether it is his real brother or his figurative brother is unclear. This is an example of ambiguity because the story never explains if it is the snipers real brother or his friend that he considers a brother, or if O’Flaherty means that all men are brothers that join war together.