What motivates Louie to attempt to change in unbroken?

In "Unbroken," Louie Zamperini is motivated to change primarily by his desire for redemption and a sense of purpose after enduring the horrors of war and imprisonment. His experiences as a POW instill in him a profound struggle with trauma, leading him to seek inner peace and healing. Additionally, his encounter with faith and the teachings of a pastor inspire him to confront his anger and guilt, ultimately pushing him towards a path of forgiveness and transformation.