Sky Raiders by Michelle Diener

First they flew their mysterious sky craft through the skies of Barit. Then they started attacking. Finally, they began to raid.

Garek is one of the strongest guards of his generation, one of the few who can manipulate the air itself. When the mysterious sky raiders arrive and begin to attack, he’s forced into two years of service to protect his liege. But while Garek was protecting the city walls, the sky raiders were taking their victims from elsewhere.

Taking Garek’s family, and his intended, Taya. But Garek is willing to go to any lengths to find them and nothing will keep him from Taya. Not even space itself.