Agreement with Passini: Although the narrator does not explicitly state that he agrees with Passini, his actions and thoughts suggest that he does. For example, when Passini says that war is "a dirty business," the narrator does not disagree. Instead, he simply says, "I know." This suggests that the narrator shares Passini's view of war.
Recognition of the cruelty and injustice of war: The narrator also recognizes the cruelty and injustice of war. He describes the war as a "slaughterhouse" and a "circus." He also mentions that many of the soldiers are young and inexperienced, and that they are often killed or wounded for no reason. This suggests that the narrator believes that war is a senseless waste of human life.
Desire to be a part of something larger than himself: The narrator also expresses a desire to be a part of something larger than himself. He mentions that he feels "lost" and "alone." He also says that he wants to be "part of something that was going on." This suggests that the narrator is looking for a sense of community and belonging.
In conclusion, the indirect characterization of the narrator in "In Another Country" reveals that he agrees with Passini, recognizes the cruelty and injustice of war, and desires to be a part of something larger than himself.