These personal narratives reveal the psychology of war in all its horrible reality--modern warfare on its gigantic scale--the genius of invention and organization applied to destruction. They reveal, moreover, the psychology of human nature and human emotions in all their moods and passions. The first impression is of the physical horror of the war, but this is soon overcome by the higher spirituality that impels men to sacrifice their lives for civilization and humanity. The stories sink at times into grossest brutality only to rise to the heights of nobility on the part of the sufferers. Officers tell of the charges of their battalions; the men in the trenches tell of the "nights of terror"; spies tell of their secret missions; nurses deliver the death-messages of the dying; priests tell how they carry the Cross of Christ to the bloody fields; the prisoners tell the "inside story of the prisons"; aviators relate their death-duels in the air; submarine officers tell how they torpedo and capture the enemies' ships. There is testimony from the lips of women who were ravaged; children who were brutally mutilated; witnesses who saw soldiers crucified; soldiers lashed to their guns; babies torn from their mothers' arms; homes in flames and ruins, cathedrals desecrated. And yet there is an undercurrent of humanity in these human documents. In their physical aspect they are almost beyond human belief--but there is a certain spiritual force running through them. There is a nobility in them that rises above all the physical anguish. These stories (and this war) reveal the souls of men as has nothing before in modern times. The war has taught men "how to die." These men have lost all fear of death. They have traveled the road of the crucifixion and stood before Calvary; they have caught a glimpse of something finer, nobler, truer than their own individual existence. Through suffering and self-sacrifice they have risen to the noblest heights. They have found something that we who have not faced death in the trenches may never find--they have felt an exaltation in mind and body that we may never know. There is the fire of the Old Crusaders about them; they have caught the realization of the glory of humanity as they march into the face of death. It is interesting to observe that wherever the story-teller is fighting for a principle, he sees no horror in war or death. It is only where he thinks of his individual suffering, where his thoughts are of his own physical self, that he complains.