I'm struggling to remember/identify a fantasy story I read, probably 10+ years ago.
From memory, it was written in first person narrative and/or memoir style. The protagonist went through various stages, at one stage he was in an army (commander and/or conscript, maybe both at different times). At other stages he retreats from the world until events drag him back. I recall the stories spanning multiple kingdoms, there is a period where he is travelling with an army on horseback.
There were some adult themes (violence, sex etc). It may have been a stand-alone novel but I seem to recall it being a trilogy. I may be confused due to the various stages, or periods, of the book.
IIRC the last chapter or two was written from another characters point of view - the main character was going into a final battle and it gave the story added tension as it was unclear whether he was going to survive or not.