I don't really like the Orange clones, but I had to find a use for them,
I'm kind of shooting ahead of time, The Orange guys were going to be one of the groups that joined the "Naumova Rebellion", which hasn't "happened yet",
Basically in a Nutshell there have been several "eras" that all the armies have been involved in
First Era, Negaverse Invasion, All the Lego Armies were fighting against Megablok and various Toys
Second Era, White and Blue Armies fought against Green, Red and Black
Third Era *Current* , Complete Free For all, Began around 2007-2008, ends with the Sokolov Campaign *Field report is underway*
Forth Era, Begins with an Internal Rebellion in the white country, then once it ends the White Country becomes an expansionist radical empire and starts taking over vast parts of the Sector, Red Blue and Black armies Unite against it, Green is left out of the club, and the Battle droid/robot army is allied with the white.
Hope that clears it up.