I touch on rape and PTSD in this post, so if those topics are likely to upset you, I would suggest treading carefully.
I’ve recently been making my first pass through A Song of Ice and Fire, which is exactly my sort of fantasy series and (with the exception of the increased emphasis on prophetic elements) becomes more my sort of series as it goes. While some of my friends have been disappointed that George R.R. Martin spent less time on character arcs they’d spent the past four books caring about, preferring to focus on worldbuilding and playing around with archetypes and metafiction … that’s what I like to read, so A Dance with Dragons has thus far been my favorite book of the lot. As I’ve been reading, though, I keep returning to the theme of brutality and cruelty in war with fresh eyes.