The Empire of the Rising Sun is a faction from middle east actually. Its great that RA is back! 
Not the middle east...
The Empire of the Rising Sun has risen in the East, making World War III a three-way struggle between the Soviets, the Allies, and the Empire...
They mean the far east. Also...
Red Alert 3 takes place after leaders in the Soviet Union go back in time to change history and set themselves on a course to world dominance. But as with all time-traveling science fiction, something goes terribly wrong, and they instead assure the rise of a new third faction: the Empire of the Rising Sun. This sets the stage for an alternate reality future where the Japanese Empire became a high-tech military super power, where the Soviet Union continues to thrive, and where the Allies enter this three-way struggle for hegemony.
http://www.1up.com/do/newsStory?cId=3166274Basically they are playing with history (which I think is cool) and coming up with a really funky post WWII style scenario where the Japanese won the Pacific, the Soviet Union flourished, and the Allies I assume aren't doing quite as well. I hope they balance the US and Europe forces together...heck maybe they'll go straight for the factional style of play that Yuri's Revenge, C&C Generals: Zero Hour, and C&C3: Kane's Revenge seem to be picking up on.
Looking forward to hearing more.
Dekker: Couldn't agree more about Hell March and Mechanical Man. Loved Act on Instinct too! C&C2 had a few good ones...Valves and Dusk Hour were awesome industrial/ambient tracks. Hope they go back to doing the named tracks.