The Green Lantern Honor Guard is an elite group of Green Lanterns not restricted to one Sector and were based on Oa. One of the earlier members of this prestigious group was Tomar-Re who summoned the Green Lanterns of the 3600 Space Sectors to Oa in order to brief them on the threat of Krona and his undead master Nekron. Green Lantern Guy Gardner was promoted to Lantern number one (by contrast, Hal Jordan is 2814.1 and John Stewart is 2814.2). Guy serves as a flexible trouble-shooter, aiding any sector in need and has also served in a leadership role during battle. Kyle Rayner is the second known Honor Guard from earth.