What to read after Heir To The Empire: The Next Generation?

Martha always admired her veteran father and sought to emulate his example. Her wish was granted when she, along with her prodigious and reclusive best friend Elisabeth, was accepted in the premier military academy in the world. Once there, the two are assigned in a unit with Giuliana, a free-spirited and passionate fellow cadet, as well as Viktor, a young man who maintains his cool in almost all situations and is seemingly full of surprises. As the semester rolls through, they face the hardships the university pushes on them as well as befriend some of their fellow cadets, however a looming terrorist threat and the secrets they keep from each other threaten to tear their careers, and friendships, apart.