-----A good continuation of THERE WILL BE DRAGONS and THE EMERALD SEA, military/fantasy fiction in a post-disaster future Earth---by the author of A HYMN BEFOR BATTLE, GUST FRONT, and (with David Weber) the Prince Roger series including MARCH UPCOUNTRY, MARCH TO THE SEA, and MARCH TO THE STARS----
The world had been a paradise until the Fall, when the holders of the control codes for the world-spanning program called 'Mother' fell out in civil war. The United Free States felt well-defended behind its screen of elite naval Dragon carriers that held sway in the Atlantis Ocean. But when New Destiny proved to have dragon carriers of its own (and more of them) the linch-pin of the UFS defense went out the window.
Edmond Talbot had never really studied naval warfare, but what he didn't know about war in general hadn't been written. So when he took over the navy, at its moment of utter defeat, New Destiny's problems were just beginning.