East of the Sun and West of the Moon — John Ringo

ORCS IN SPACE!

When the council that controlled the world- spanning computer Mother fell out in civil war, it plunged the world in an instant from high-tech utopia to medieval nightmare. Now the warrior Herzer Herrick and his lover, new Council member Megan Trevante, have been assigned the mission to capture the spaceship that supplies the fuel for the world-wide power grid. Only one obstacle to the completion of their mission: Orcs in Space!