The jo can be used for both offensive and defensive purposes, and it's an excellent tool for distance management. In Bujinkan Budo Taijutsu, we teach various techniques that involve the use of the jo, such as strikes, blocks, and throws. The jo can be used to strike vital points, such as the head, neck, or knees, and can also be used to sweep or trip an opponent. The jo can also be used to deflect incoming attacks, creating openings for counter-attacks.