Kogeki is a term meaning to attack or cut down and refers to offense and Bobi means defense. The term “Ko Bo Ichi” or “Kogeki Bobi” refers to the principle that offense and defense are one. Hundreds of examples exist that can be used to illustrate this concept.
One example that collapses the distinction between Offense (Ko) and Defense (Bo) is Upper Body Shifting (Jo Taisabaki – shown right). Here, the body rotates in defense, and the same rotation drives the attacking punch. Using this type of technique takes a thorough understanding of timing (Hyoshi) , distance (Ma-ai), Initiative (Sen No Sen or Tai No Sen) and most obviously, confidence.
Blocks used to deflect an attack are used to break an arm at the same time , seriously degrade the opponent’s offensive capability, and collapse his structure (Kuzushi). In Kendo a number of terms describe the concept of attack and defense being equal by taking the center line where a downward cut is used to both block or deflect the opponent’s sword while striking at the same time. Examples include:
- Kiri Otoshi – ‘Dropping Cut’ from Itto Ryu
- Gasshi Uchi – from Yagyu Shinkage Ryu
- Hitotsu Tachi – ‘One sword’ from Kashima Shinto Ryu
Offense and defense can be considered as two separate entities, part of a spectrum, or something inseparable.
Short Time Slices Blur Distinctions
At the tactical and technical levels of strategy, smaller and smaller time slices between offense and defense transitions can merge the two. To fight this way requires strong ability, mental fortitude and flexibility, which shows a high degree of understanding. I remember when I was first introduced to fighting using Sanchin Dachi, a very short upright stance. A visiting senior instructor from another Dojo in Kumamoto was training with us. I learned very quickly that close in-fighting is incredibly fast and combined offense and defense at the same time. Punches were sticky and curved around my blocks like a snake only strike and at the same time prevent me from retaking the initiative. I came away with a very important lesson. Never underestimate small movements, and offense and defense really are the same.
There are many other examples of this concept. These short paragraphs do ill justice to the depth of this area of study. Look into your Kata and find it.
Excerpted and adapted from: Budo Theory: Exploring Martial Arts Principles
by Richard Rowell