What are two examples from the story A Mystery of Heroism showing that Crane believes war personifies machines and dehumanizes people?

In "A Mystery of Heroism," Crane uses the artillery fire to show how war behaves like a relentless machine, demonstrating its impartiality and lack of regard for individual human lives. Secondly, Collins's willingness to fetch water in the midst of battle, despite the danger and his companions' astonishment, illustrates how the soldiers become desensitized to their own humanity, reduced to mere components within the larger machinery of war.