I commented on Passage at Arms here, as it is one of the great military SF novels of the genre, but I'd never gotten around to reading his other military SF novel. This is partly down to how difficult it has been to get hold of a copy,. And remember I don't do E-Readers or enjoy reading fiction on a monitor; and you can call me an old fuddy-duddy if you like.
Let me start by saying they don't write books like this anymore, as in this drops you in the deep end, and just expects you to keep up. It also expects the reader to be acquainted with the tropes and able to keep up with concepts that are mentioned in passing. This is hard SF, where the characters are not more important than the plot and the ideas, which is opposite to what I see today where characters are considered to be the most important factor in a story.
It was every bit as good as its reputation would make it sound. Can't say more than that.