DoD Photo by Navy Petty Officer 2nd Class Jesse A. Hyatt
In 1947, the U.S. defense establishment finally recognized that airpower was an environment distinct and separate from sea or air. It required specialized knowledge and training, as well as a service culture that did not subordinate airpower to other functions within that service. The U.S. Air Force was created as a separate, independent service.
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.