Battle Droids are robotic soldiers used by the Trade Federation and later the Separatists in the Star Wars universe. They are designed for combat and are often deployed in large numbers during battles. These droids are typically equipped with blaster rifles and can be programmed for various tactical roles. The most common type of Battle Droid is the B1 Battle Droid, which is relatively simple and inexpensive to produce. They are known for their distinctive lanky appearance and often display a lack of intelligence, leading to humorous moments in the films. More advanced models, like the B2 Super Battle Droid, offer enhanced combat capabilities.