The pre-order campaign kicks-off at select retailers nationwide this week and features three exclusive unlockable units.

• Machine Mortar (Far East Region, Future Epoch) - A genetically engineered soldier that launches a devastating, area-affect salvo of shells.
• Persian Mercenary (Middle East Region, Ancient Epoch) - An ambidextrous warrior armed with a pair of lethal blades.
• Urban Special Forces (West Region, Modern Epoch) - A highly disciplined, well-armed Urban Special Operations soldier.

"Empire Earth is an award winning real-time strategy franchise where players can grasp the entire globe within the reach of a mouse," said Al Simone, senior vice president, Global Marketing for Sierra Entertainment. "Empire Earth III will be one of the most expansive strategy games for the PC."