Shotokan Karate of America (SKA) is a non-profit organization in the United States dedicated to teaching traditional karate-do.
Ohshima (born 1930) began his karate training at the Waseda University club in 1948, having already practiced sumo, kendo, and judo during his childhood.
[2] In 1955, he moved to the University of Southern California for further studies and subsequently conducted his first karate practice in the United States.
SKA organizes biannual regional events called "Special Trainings" (or Tokubetsu kunren in Japanese), typically held in winter and summer.
One rule during Special Training is that participants are not allowed to leave until the event concludes officially; departing early without the chief instructor's permission results in automatic expulsion from SKA.