After all, the military doctor saved William's brother Fredham. Under the medical conditions and work intensity of the battlefield at that time, the military doctor should help Charlotte out of a little selfishness. I think Charlotte can feel it. Another problem is that the war pattern of World War II determines the fighting situation and living environment of life and death in one second. The emotional needs of front-line personnel are beyond the requirements of ordinary people and moral standards. Sometimes this kind of mental or physical comfort is a physiological need, just like eating and resting. In addition to the pursuit of faith, emotional enrichment is to give yourself a little confidence and courage to live.