The distinctive shape and hue of a Republic Cruiser is instantly recognizable throughout the galaxy, indicating a vessel on a mission for the Galactic Senate, the Supreme Chancellor, or the Jedi Order. Chancellor Valorum dispatched a Republic Cruiser carrying two important Jedi ambassadors to negotiate an end to the Trade Federation Blockade of Naboo. The cruiser docked within a Trade Federation battleship's cavernous landing bay. On the orders of Darth Sidious, the Trade Federation ambushed the Jedi ambassadors. The crew of the cruiser was caught by surprise, destroyed by a concealed turbolaser turret.
The Republic attack cruiser was not primarily a cargo transport, troop carrier or other replenishment or supply vessel; it was developed and honed for ship-to-ship combat. Its huge armored shape had an aggressive, dagger-like profile, studded with heavy weapons emplacements capable of punching through powerful shields and sturdy armor. The front half of the ship's spine contained a massive flight deck capable of scrambling the latest in Republic starfighters. The huge hangar doors opened to allow ships to land or takeoff from the deck; the vessel also had a smaller docking bay entrance on its lower side.
One of the biggest ships of the Separatist fleet, the dreadnought's power is enough to hold a blockade almost by itself. A roughly cylindrical warship, the cruiser's surface was dotted with heavy weapons capable of piercing through the shields and hulls of enemy vessels. The bridge of the cruiser was located on a platform resting atop the bow of the vessel. Towards the aft end of the craft was a towering fin-like spire that rose from the rest of the hull. Within this spire were the General's Quarters, a command center with tactical displays, briefing table, and an observation deck with a view of surrounding space.
At over three kilometers in diameter, these enormous vessels resemble flattened disks with a central sphere containing the ship's bridge and reactor assemblies. The disk is broken at the front of the craft, revealing two mammoth docking bays lined with forward docking claws. The reclusive Neimoidian commanders typically seal themselves in the ship's spacious bridge while their legions of droids handle the operation of the mighty craft. The most important vessel in a Separatist battleship flotilla is the Droid Control Ship, which transmitted signals to the battle droid armies used by the Trade Federation and Separatist forces.
The droid armies of the Separatists relied on a well-protected supply chain made of converted corporate transport vessels. Huge ships, like the barbell-shaped transport craft or the heavily-armed Trade Federation battleships, ferried in reinforcements, power supplies, weaponry and other essential materiel to the front. As more and more worlds took up the banner of the Separatist Alliance to do battle with the Republic, the Confederacy military was bolstered by flesh-and-blood warriors, like the natives of Umbara or Mon Cala.