The Non-Canon Expert looks at the galactic history regarding the use of droid armies and war droids in warfare, explaining why it was unlikely that an army the size of the Separatist droid army would emerge after millennia of established precedent and why a droid army was ultimately adopted and utilized by the Separatists during the Clone Wars. This is a Legends story for the events surrounding the Clone Wars and galactic history with information contained within a number of Legends sources, but primarily the «Star Wars: The Essential Guide to Warfare,» and the Legends novel «Star Wars: Darth Plagueis.»