Board Thread:Questions and Answers/@comment-186.22.189.77-20131222204507/@comment-3204920-20140110084518

Yeah, Charles probably used Lelouch to speed up the conquest of the E.U. (at least so much as the E.U. controlled Geass Control Sites/Ancient Temples could be placed under the EMpire's control) then when that was done (and he needed C.C.) he rewrote Lelouch's memories once more and sent him back to area 11 to act as bait.