The Corps is an organization of 7200 Green Lanterns (The Old Corps had 3600) who are chosen by the ring for being able to overcome great fear, with two assigned to sectors of space that require the protection of more than one Green Lantern (Earth, home to Hal Jordan and John Stewart, is in Sector 2814). Heavily-populated Sectors like 2814 can have several Lanterns. While the primary Lanterns of Sector 2814 are Hal Jordan and John Stewart, Kyle Rayner and Guy Gardner call Earth home, but are stationed on Oa, first as teachers, and then specially assigned to cases that are too difficult for the average GL.