Book excerpt: In 1965, Master Sergeant Leo Dubois was ordered to Vietnam. Seventeen years in the Air Force, 37 years old, with five - soon to be six - children, he moved his family to Jacksboro, Texas for the year and then departed for the airbase at Da Nang. Every day or two, he exchanged letters with his beloved wife, Don Leta. Her letters from home are gone, but Leo's letters survive. They tell stories of tumult on a rapidly expanding military base and the trials and humor of leading the young men under his supervision. And the letters reveal life at home, not directly, but indirectly, as if in reflection. From beginning to end, and deeply, they reveal the tender affection and abiding devotion of a husband for his wife. 344 pages; 77 photographs and illustrations.