Bruce Lee searched out the roots of combat, seeking concepts fundamental to all martial arts. He added elements of western boxing, fencing and other arts to his initial Wing Chun training. He named his personal expression of martial  arts “Jeet Kune Do,” (JKD) and means “The Way of the Intercepting Fist.” The idea of intercepting your opponent’s attack is key to understanding JKD. 

Jeet Kune Do is not fusion of systems or a grab bag of techniques from different styles. Rather, he sought to incorporate a small number of essential techniques into a functional arsenal that could adapt to any situation. Scientific street fighting is a term he informally used to describe his art.