This is idealistic and idealist. You can’t learn how to handle the adrenaline given off in the face of imminent death from a book. Sensory experience cannot be invalidated for it serves as memory for future similar stimuli. Furthermore tales of combat heroism are essential to the morale of an army, the CPVF utilized this brilliantly by listening to soldier feedback and creating a newspaper acknowledging accomplishments by and distributed to the CPVF forces on the Korean front soon into their early campaigns.