A Soldier's Duty (Theirs Not to Reason Why) - Jean Johnson

It's hard to believe this is the same author who did the Sons of Destiny series.  Those I could not get into.

This book was fantastic.  There were a lot of technical details that are important for world building but I found a little boring, thus the 4 stars instead of 5.  It's because there were A LOT of world building details.  

I'm planning on reading more of this series.  I would recommend this to any military sci-fi fans out there.