sentences:  In the United States the art of Shudokan Karate is being taught, however different in some ways, by the American Shudokan Association (ASA) formerly under the leadership of Morris Mack of Yakima, Washington.The ASA, with over 15,000 members in the Pacific Northwest region of the United States, was founded by Walter Todd and Morris Mack in the 1980s.Walter Todd was a student under Yoko Takahashi who was a direct student of Kanken Toyama.