Great because it goes past the glory often presented in wars and shows the grim horrors involved. Poor because it is often a tool of the leftists and pacifists and can lead one into their mindset.
I was forced to read this during a college history class, for what reason I still don't know... I believe it would fit better in a literature class.
EVERYONE (save fanatics/idiots) is "anti-war."
LIBERALS are anti-war regardless of the cost or consequences.