The Jackson MacKenzie Chronicles: Double Envelopment

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

The year is 1969. U.S. Army Major Chris Patterson receives his orders for Vietnam. A conflict that has been raging since 1954. Even after a personal tragedy, Chris goes to war. Again. He throws himself into his duty, fighting within himself about losing men and friends. Including one lost, found, and lost again, best friends from their West Point days. They become ravaged by a war that changes them forever. Will their bond survive what Vietnam took away?