17 Terrorist and Knightmare Pilot Eleven
Ryo Sayama is the leader of a particular group that opposes the Mafia. He's plotting an attack on the E.U. general, Sumairasu.
(Source: codegeass.wikia)
His group's goal, in contrast to the Black Knights as led by Zero, whose goal includes the liberation of all Japanese from Brittanian rule, is only in finding a homeland for themselves.