Which parts in this excerpt from "Editha" by William Dean Howells denote the meaningless of war?

In Willam's Dean howell's "Editha", the excerpt that denote the meaninglessness of war is:

"No, girls don't; women don't, when they give their men up to their country. They think they'll come marching back, somehow, just as gay as they went, or if it's an empty sleeve, or even an empty pantaloon, it's all the more glory, and they're so much the prouder of them, poor things!"