Orion Fleet

The Orion Fleet was Republic Defensive fleet consisting of a mix on Venator Class Star destroyers, Acclamator-Class Assault Ships, and several hundred support ships. The Fleet was home to and lead by the Republic Venator, The Orion Venator, run by Admiral Prime. During the Clone Wars, the Fleet would be home to members of the 224th Armored Division with each Venator holding Defensive vehicles such as the AT-AP or the Republic Juggernaut or Clone Turbo Tank. For most of the War the Orion Fleet would be stationed as either a small blockade keeping off CIS invaders from supplying their troops, or a Republic Garrison, defending the republic forces on the planet below. 
For the Majority of the clone wars, the fleet would be stationed on the planet Mimban, keeping the the constant threat of CIS attack at bay. While the Venators defended the mud planet, the fleet was known to send Venators from they're fleet to assist in other republic operations or when ever help was needed. Due to Mimban's ties to the outer rim, The Orion Venator would assist the crew of the Valkyrie Venator many times if there fleet was unavailable to aid them.