The Art of Tetman Callis

“Soldiers became so tired that they drifted into sleep at the slightest slackening of effort, and leaders, themselves exhausted, found one of their greatest problems was keeping them awake. Soldiers could not remember what happened the previous day and found events blurring into one another. Even with their well-being dependent upon remaining alert, the soldiers became sluggish. They tired and lost the instinct for self-preservation as they failed to follow even the basic fundamentals of their combat training. Fatigue caused casualties. Soldiers walked instead of ran across open fields that were being shelled because they were too tired to run and had passed the point of caring whether they were hit or not.” – Robert Sterling Rush, Hell in Hürtgen Forest