Hello. You have not submitted the two excerpts to which the question refers, which makes it impossible for your question to be answered accurately. However, I am going to give you an overview of the "A Farewell to Arms" themes that can help you.
One of the main themes of "A Farewell to Arms" is the brutality of the war and the chaos caused by it. The novel focuses on the mental lack of control, fear, destruction and insecurity that the war provokes and this can be seen in almost all the work, mainly in the events that follow the protagonist, Frederic Henry and cause him to abandon all the experiences of the war.
The novel also addresses the relationship between love and pain. This can be realized with the attempt of many persecutions to cure the pain they feel with the search for love, any kind of love, even if it is false. An example of this is Catherine, who tries to seduce Henry to feel loved and forget the pain of having lost her fiancé.
"A Farewll to Arms" is a novel written by Ernest Hemingway and tells the experiences of Frederic Henry in the first world war when he served in the Italian army.