Aikido is a Japanese martial art developed in the early 20th century by Morihei Ueshiba. It is a form of self-defense that emphasizes harmony and non-resistance, using joint locks, throws, and pins to subdue an opponent. AIKIDO practitioners strive to use the least amount of force necessary to neutralize an attack. It is often referred to as the 'art of peace' due to its emphasis on harmonious resolution of conflict.