Too Bad
First, the Mil, SciFi, Fiction part of the story, book was entertaining. Book 1 was better, IMO, more detail and action , story reasonably consistent throughout. However, the MC was consistently promoted and it wasn't until this book where he showed some solid military acumen. His accomplishments in book 1 didn't merit his rise.
But my issue, and reason I'm going to stop reading series, is authors political agenda or essentially major story line. I believe this book transitions plot to the familiar SciFi theme of evil earth, evil earth government, evil mega corps -- anything associated w earth. Oh, and the colonies walk on water of course. The story has major portions of political meandering that was incredulous and boring.
The greed, lust for power prevalent in all earth superpowers -- I don't get it as to why, everything considered. Author tried a time or two to explain and didn't hold up at all. You're asking me to believe Hitler, I hate this example, would have disbanded the Waffen SS because they fought for Germany, not him. Nope and there were no peculiarities to setup this evil earth as there was for WWII. Both my grandfathers were bitter to the day they died because of the Treaty of Versailles . Just in case, Western Front, WWI, Germans. Hitler's rise, understandable but excuses nothing. Here.....?
Series has turned into popular SciFi author political rant.