Republic High Command/Legends

Republic High Command was the Galactic Republic agency that oversaw the Republic's war effort during the Clone Wars. It held authority over the Grand Army of the Republic and Republic Navy, and possibly the Jedi Order, Judicial Department, and Republic Intelligence. It was presumably a part of the Office of the Supreme Chancellor, and the War Council Advisory Panel and Homeworld Security Command were presumably subdivisions of it.

During the Clone Wars, none of Palpatine's military advisors knew of his double identity as a Sith Lord and instigator of the war.

After the Declaration of a New Order, Republic High Command presumably became Imperial High Command.