"in another country" what does the machinery in the hospital represent to the army major in the story? support your answer with textual evidence.

The machines represent a discipline that the Hemingway Code hero needs (which is what the army major is..)  A Hemingway code hero, as defined by himself, is “a man who lives correctly, following the ideals of honor, courage and endurance in a world that is sometimes chaotic, often stressful, and always painful.”

this is also seen by the constant correction of Nick's grammar