It was too bad, he reflected, that so much of a recruit's time was wasted on close-order drill, of use only for parade formations and in moving a command in an organized area. Such training was useless in combat; a recruit was taught everything except how to fight. The only way the army offered training in combat was by survival. If one survived in combat one was wiser and a better fighter next time.
(from Under the Sweetwater Rim, by Louis L'Amour)