Henry V, Journey's End and [another one]?

I am doing an extended essay on 'the adversity of brotherhood in conflict'. I have to compare a Shakespeare text. I chose Henry V to two other texts (prose or drama) based on my theme. I was going to compare it to For Whom the Bell Tolls and Lord of the Flies. My teacher doesn't like me doing Lord of the Flies for an A level essay, and For Whom isn't practical for me. So, I am looking for two other texts. I may use Journey's End, any other ideas? Maybe another one set in France? Thanks for your help.