"Juxtaposition Reality"

Matt Kelly is sent on what should be nothing more than a health and welfare check of a well-connected missionary.  But he soon finds that everything he believes is compromised?  And now Kelly and four men--who are still learning to trust him--stand between peace and the first galactic war?  The closest back forces are training several light years away.  And, oh by the way, he's a brand new Second Lieutenant.