From the start of American operations in the Vietnam War in 1961 to to the end of direct U.S. military involvement in 1973, more than 3 million Americans served in the conflict, half of whom saw combat. The deeply divisive war came to define a generation, as did its toll on human life.
Benjamin Franklin nailed it when he said, "Fatigue is the best pillow." True story, Benny. There's nothing like pushing your body so far past exhaustion that you'd willingly, even longingly, take a nap on a concrete slab.