I'm conflicted on this book. While I was initially pleased with how the narrative concentrates less on the overall battle strategy and more on the human stories of the participants (including Lincoln and McLellan and Lee), as I moved more into the book, I found it difficult to stay interested. The whole middle of the book was page after page of "This group of guys crept up, charged and got slaughtered," and then "This other group of guys crept up, charged and got slaughtered." After awhile I became inured to the slaughter, and pretty much stopped caring who I was even reading about at any given point. Since the book seemed intent on putting a more human face on the participants, I found this to be a strange consequence. It was like reading about two kids playing with little green army men.
I've read "The Killer Angels" multiple times, which is heralded to be the last word on Gettysburg, and had a difficult time following the flow of the battle at times. The diagrams didn't always seem to tally with the narrative, and the sheer number of names made it difficult to keep track of everything. Every time I sit down to read that book, I always tell myself I should have a notebook nearby to jot notes to help, but I never do.
KA and 'A Fierce Glory' are on opposite sides of the problem for me. I would have preferred MORE discussion about the battle sequence and troop movements in AFG, so when my interest in each individual company of men being currently slaughtered waned, I could at least back out to the overall strategic picture. Maybe just the addition of some well-designed troop movement diagrams would give me what I needed. Instead it was 200 pages of, "Some guys climbed a hill and ran into a hailstorm of bullets and it really sucked to be them."
On the other hand, maybe Martin was trying to make you feel like one of those soldiers...they wouldn't have had any concept why they were doing what they did at any given moment, nor would they have known how their actions affected the overall battle. This is how I felt as a reader, and I didn't much care for it.
I very much appreciated Martin's choice to explain the backgrounds and motivations of the main characters. This was what made the book worth reading, to me. His Lincoln, McLellan and Lee really came to life for me, and I learned many things I hadn't known before.