Final answer:
The excerpt relates to the horrific casualties of World War I, emphasizing the large scale of human suffering and death. It aligns with historical accounts detailing the physical and emotional toll of the war on soldiers and civilians, as well as its portrayal in post-war literature.
Step-by-step explanation:
The excerpt reflects the devastating impact of World War I on soldiers and civilians, highlighting the senselessness of the immense casualties and suffering. World War I resulted in an astronomical number of casualties, with the military deaths between nine to ten million, civilian deaths approximately at ten million, and over twenty-one million wounded.
This massive loss of life and the high rate of injuries convey the grim reality of the war that literature of the era, like works by Ernest Hemingway, Erich Maria Remarque, and others, tried to capture. The sheer scale of the misery and the inadequacy of pre-war culture to prevent such suffering rendered past cultural achievements seemingly futile in preventing such carnage and reinforced the idea of a 'lost generation.