Nathan Hale (the character) tells Hangman and Provost about WWI using formal language that parodies so many dry historical textbooks students slog through in school. Provost loves it and Hangman is horrified. He wants something funny. Something exciting. He wants cute little animals. Hale obliges Hangman and the countries argue when they want similar animals. The Americans end up being bunnies and British bulldogs in a funny argument between the Provost and Hale. The animals help put some emotional distance between the reader and bloody war; however, the mind-blowing scale of death and destruction with the advent of trench warfare and new weaponry is still conveyed. The war ended more on weariness than one concluding victory.
I always learn more details from Hale (the author) than I ever did in my history classes. He adds little quirky facts that are memorable such as the assassination of Duke Ferdinand. I didn't know about the foiled first attempt and the Duke not seeking safety. Nor did I know about the cyanide pill that didn't work for the assassin. Hale shows the use of gas masks and the gas being changed during the war from chlorine to the deadlier phosgene. He shows how nationalism affected the war and how the Russian Revolution was an outgrowth of the conflicts. He covers so much ground and makes it fairly easy to understand. An amazing series.