Shadow Hunter — a series by QM

Darras was a veteran of a brutal five year war against a despicable yet powerful enemy. Ordered to hold for three days as the last of his defeated nation’s people were loaded onto colonisation ships, he’d done the impossible and held for ten, leaving the invaders with nothing but an empty port and massive casualties. He then discovered that death was not to be his, with a new life and a new challenge with the blessings of a goddess who needed his help. / (Reviews)

Darras, a man out of place and time, serves his goddess in an eternal war with her brother, who wants nothing more than a society dominated by might makes right.

The dance of moves between Erren and her brother, the Dark Lord continues, though the momentum is shifting in her favour. Darras continues to thwart the Dark Lord's plans with the aid of his friends and allies, both godly and mortal. Yet hidden away is still the dragon and the mortal forces of the Dark Lord, deep in the south, where no one goes.