J.D. Vance’s military service plays a significant role in shaping his identity and perspective throughout Hillbilly Elegy. Serving in the Marine Corps instilled in him a sense of discipline, responsibility, and purpose, which contrasted sharply with the instability he observed in his hometown. His experiences in Iraq exposed him to diverse cultures and challenges, broadening his worldview and fostering a desire for personal growth and achievement. Moreover, the structure and camaraderie found in the military provided Vance with a support system that was often lacking in his family life. This background allowed him to gain self-confidence and the skills necessary to navigate the complexities of life beyond Appalachia. Ultimately, his service is portrayed as a transformative period that not only helped him rise above the circumstances of his upbringing but also influenced his understanding of community, resilience, and the pursuit of the American Dream.