A Systems Army was a significantly large infantry unit. In the Grand Army of the Republic, System Armies consisted of two Sector Armies, totaling 294,912 clone troopers, and were commanded by high-ranking Jedi Masters, High Jedi Generals. The Third Systems Army was under the command of High Jedi General Obi-Wan Kenobi, who also was the commander of the Open Circle Fleet. Clone Marshal Commander Cody of the 7th Sky Corps served as Kenobi's second-in-command.