United Studios of Self Defense (USSD) is the largest martial arts school in North America and recognized as America's Self Defense Leader. Since 1968, USSD has honored a rich history of nearly 2,000 years of tradition, teaching students a unique Kempo-style martial arts system from the finest US instructors.

Experience a legacy of history and authentic martial arts at a USSD studio. As a new student, you can explore this rich tradition firsthand. Get started today by securing your Free 1-week Pass, including the USSD Master Turner Seminar. Find a studio near you and begin your journey.