The one in the Bois Jacques.
Carwood Lipton: (narrating)
The morning after the shelling that killed Muck and Penkala, I saw a soldier trying to dig a foxhole with his bare hands. He didn't even notice that he'd torn off all his fingernails.It was the policy of the U.S. Army to keep its rifle companies on the line for long periods, continuously in the case of the companies in infantry divisions, making up losses by individual replacement. This meant that replacements went into combat not with the men they had trained and shipped overseas with, but with strangers. It also meant the veteran could look forward to a release from the dangers threatening him only through death or serious wound. This created a situation of endlessness and hopelessness, as Winters indicated.
Combat is a topsy-turvy world. Perfect strangers are going to great lengths to kill you; if they succeed, far from being punished for taking life, they will be rewarded, honored, celebrated. In combat, men stay underground in daylight and do their work in the dark. Good health is a curse; trench foot, pneumonia, severe uncontrollable diarrhea, a broken leg are priceless gifts.
There is a limit to how long a man can function effectively in this topsy-turvy world. For some, mental breakdown comes early; army psychiatrists found that in Normandy between 10 and 20 percent of the men in rifle companies suffered some form of mental disorder during the first week, and either fled or had to be taken out of the line (many, of course, returned to their units later). For others, visible breakdown never occurs, but nevertheless effectiveness breaks down. The experiences of men in combat produces emotions stronger than civilians can know, emotions of terror, panic, anger, sorrow, bewilderment, helplessness, uselessness, and each of these feelings drained energy and mental stability.
Ambrose, Stephen E. (September 2001). Band of Brothers (pg 207)