In Private Peaceful, how does the author present Charlie as a hero in the novel

I think Charlie is more of a hero-figure. Charlie is Tommo's older brother and also his protector. As a child he looked out for him and as a soldier he has done the same but the act of putting his family loyalty first has been punished with a death sentence by the military court. He has a strong instinct to protect and also to preserve life, whether hiding Bertha the dog from her brutal owner or saving Captain Wilkes' life. Charlie is tough but sensitive and loyal to his brother although he is aware that having a relationship with Molly, whom Tommo lives, will hurt him, hence the need for secrecy. Charlie is a good, courageous young man who deserves much better than the fate handed down to him.