R.A.D. Basic Physical Defense for Women The Rape Aggression Defense System is a program of realistic self-defense tactics and techniques for women. The R.A.D. System is a comprehensive, women-only course that begins with awareness, prevention, risk reduction and risk avoidance, while progressing on to the basics of hands-on defense training. R.A.D. is not a Martial Arts program. Our courses are taught by nationally certified R.A.D. Instructors and provide each student with a workbook/reference manual. This manual outlines the entire Physical Defense Program for reference and continuous personal growth, and is the key to our free lifetime return and practice policy for R.A.D. graduates.