Open Circle Armada
this was the Old Republic naval task force that was commanded by Jedi Master Obi-Wan Kenobi and Jedi Knight Anakin Skywalker, during the height of the Clone Wars. At its height, the Open Circle Armada had five separate fleets, each capable of independent actions against the forces of the Confederacy of Independent Systems. The symbol of the Open Circle Armada was a simple circle formed by two semi-circle arcs, although each arc was separate from the other, resulting in the open-circle image. Each arc represented one of the Jedi Knights, and the entire symbol signified that Kenobi and Skywalker were the two halves of a single entity. As the fighting of the Clone Wars spread, units of the Open Circle Armada were split off and sent to other parts of the galaxy, where their specific talents or firepower were needed. Over time, a larger portion of the Old Republic's Navy adopted the Open Circle symbol as a symbol of the Republic itself. It was even discovered on war materiel that had been captured by Separatist forces and used on far-flung planets such as Mustafar.