Second chance romance.
Some things niggle at me - if the military is as corrupt as the series keeps painting them, there would BE no outside corporation, because they would have taken it over.
This book was written with alternating time lines - 1/4-1/3 was written in the past. In some ways, this gave insight to the H/h's relationship. It also left you wondering why Seth didn't take care of things a long time ago. Unfortunately, his leaving things hanging allowed things to happen and, eventually, the people in charge a toehold in splitting up the H/h.
Also came back to haunt them as someone recognized him, thus blowing both his and her cover.