Vatta's War

Vatta's War is a science fiction series by American writer Elizabeth Moon, comprising five books: Trading in Danger (2003), Marque and Reprisal (2004) (Moving Target in UK and Australia), Engaging the Enemy (2006), Command Decision (2007), and Victory Conditions (2008). They have been characterized as military science fiction similar in style to the works of Lois McMaster Bujold (Vorkosigan Saga), David Weber and Walter Jon Williams (Dread Empire's Fall). The books follow the adventures of Kylara Vatta, a young member of the Vatta family, which runs the interstellar shipping corporation Vatta Enterprises. She had sought a life outside the family business by enrolling in the Slotter Key Spaceforce Academy, but she is forced to resign in her final year and assigned to captain an old trading ship for the corporation.

More from: Wikipedia