War is one of if not the most effective agents of invention. And World War II, being the greatest conflict in global history, gave rise to industrial, technological, and mechanical advancements in a way that no era had witnessed before. It heralded the age of the computer, brought about nuclear warfare, and gave us a vehicle so iconic, and so badass, that we still drive it today: the Jeep.
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.