War on War by Wilco explores themes of internal struggle, personal growth, and the necessity of change. The song suggests that in order to progress and improve, one must confront and overcome their inner conflicts and fears. The chorus, 'You have to lose, you have to learn how to die, if you want to want to be alive,' emphasizes the idea that personal transformation often requires sacrifice and facing difficult truths. Poignant moments include lines like 'You’re gonna lose, you have to lose,' which highlights the inevitable hardships that accompany self-improvement.