B1 battle droid

The B1 battle droid, originally known as the OOM battle droid, was a line of developed at the behest of the  military leadership in the wake of the. Designed to be easily assembled and cost-effective, the series was capable of enduring circumstances Federation biological soldiers were unable to fight in by sacrificing more advanced artificial intelligence and built-in armament in favor of a master control signal and handheld weapons.

The droids were initially utilized in anti- operations and were first deployed en masse during the in 32 BBY, when 900,000–1,200,000 of them were used to seize and hold the planet until being cut from their control signal in the. In the period following the armistice that had concluded the conflict, the Federation droid army continued to grow in size and was merged into the armed forces of the newly formed in. They were again used in large numbers in the Clone Wars of 22–19 BBY, with several billion of them used across.

With the Confederate leadership's death in 19 BBY on the world of, most droid forces were deactivated and melted down by the. About two to three percent of the armóy avoided destruction and were later used by and various criminal forces.