Peg-Leg Pete is depicted as a leading soldier of the former army, and Mickey as a conscript of the latter one. Before joining the army, Mickey has to pass a physical examination. This scene depicts Mickey becoming the subject of physical and emotional abuse.
Peg-Leg Pete is depicted as a seasoned soldier from the previous army, while Mickey is a fresh recruit from the current one.  Before enlisting, Mickey has to pass a physical test, but this scene shows him enduring physical and emotional mistreatment.