What absurd things happened to Lieutenant Frederic Henry in chapters 9 through 15?

In chapters 9 through 15 of "A Farewell to Arms," Lieutenant Frederic Henry faces a series of absurd and chaotic events that highlight the futility of war. He witnesses the ineptitude of military leadership and the arbitrary nature of survival, as soldiers are sent into battle without proper preparation. Additionally, his experiences in the hospital reveal the absurdity of medical practices and the indifference of those in power. These moments underscore the randomness of fate and the surreal nature of Henry's wartime existence.