The Second Army, also known as the 2nd Sector Army and Green Mantle Command, was a Republic Reserve Sector Army during the Clone Wars. Led by Senior Jedi General Ry-Gaul and based on Nubia, the 2nd was one of the two Sector Armies that composed Systems Army Alpha, which was commanded by High Jedi General Mace Windu. Officially charged with the defense of the Corellian Oversector, the forces of the 2nd Sector Army saw action across the galaxy as reserve troops for other Sector Armies, and the 2nd's 327th Star Corps became renowned under the leadership of Jedi General Aayla Secura.