The 15th Defense Corps was a division of the Grand Army of the Republic. They specialized in holding important Republic-controlled worlds, in very diverse environments. Divisions of the Corps usually named themselves after either their specialty, such as the 233rd Line Regiment, or Mando'a words, like the 36th Kom'rk Legion. The 15th Corps was part of the 5th Systems Army. Notable divisions included the 36th Kom'rk Legion and the 38th Werda Legion.