The Warlord: Battle for the Galaxy (The Osiris Chronicles)

The time is the 21st century, after the fall of the Galactic Republic. Technology is at a standstill, families have been dismantled, and those who have survived the destruction now live in a savage age ruled by evil warlords. When a young sister of an outlaw is kidnapped and held captive in another galaxy, an interplanetary scheme is hatched - one that threatens the future.