Yoshitsune Combat Ju-Jitsu Combat Ju-Jitsu is a stand up and ground submission art using all three levels of fighting: standing, kneeling, and on the ground. The system comes from the Japanese traditional system of Hakkoryu Jujitsu. Using various throws, joint locks, and holds, one learns to bring an opponent into a total state of submission. Class is Tues. and Thur. 8:00 to 8:45 pm. And Sat. 9:15 to 10:00 am.