Jujitsu Before 18... - Japan's Ultimate Martial Art:

The central philosophy is using an attacker's own energy and momentum against them rather than opposing it with brute force.

During the Muromachi and Sengoku periods, the art was known by names like yawara , taijutsu , or yoroi kumiuchi (armored wrestling). Because striking against heavy iron armor was ineffective, warriors developed techniques focused on throws, joint locks, and pins to neutralize enemies quickly. Japan's Ultimate Martial Art: Jujitsu Before 18...

While primarily unarmed, many traditional schools also taught the use of small weapons like the tanto (dagger) or yawara (short stick). Legacy and Modern Roots The central philosophy is using an attacker's own