Jack's internal conflict about participating in the war highlights the theme of moral dilemma. He is caught between his duty to his country and his personal belief that killing is wrong. This theme explores the complexities of making ethical decisions in extreme circumstances.

The pressure Jack feels from his family's military history underscores the theme of family expectations. His struggle to meet these expectations while staying true to his own values adds depth to his character and illustrates the powerful influence of family legacy.

The story does not shy away from depicting the harsh realities of the Vietnam War. Through Jack's experiences, readers gain insight into the physical and emotional toll of combat, making the narrative both gripping and thought-provoking.