Read: The Ghost Brigades

This is the middle volume in John Scalzi's trilogy, starting with Old Man's War, and ending with The Last Colony (both previously reviewed here and here, respectively.

There is probably the most science in this one, as well as more exploration of the ethics of the biotech described in the story. Like the other books, there are great battle scenes and, what's more, great space/future battle concepts (e.g. freefalling from space, "skipping" into precise battle environments, integrated platoons). Also, like the other books there is lots of humor, very dry humor. In fact, humor became a theme running through the book in relation to these barely human soldiers of the future. Finally, there are some sudden bursts of pathos, sometimes from unlikely directions.

Good read!