Kogusoku
Starting in the mid XVI century, the Japanese art of hand-to-hand combat with weapons is undergoing revolutionary changes. It was predetermined by many factors. Changed the overall nature of warfare. Battle of the period - is no longer the grand tournament and a clash of armies, where the role of the individual soldier departs to a secondary role to the collective action. Here no one is responding to a call to fight a steel horse weight simply presses a warrior-alone and wall kopetsschikov in the blink of an eye turns it into a sieve. Attacks from behind, tenfold to become a routine. Compared to the previous period, has increased dramatically the number of armies, which have now been completed, not only of the noble busi, but from the commoners. The increase in the number of soldiers in conjunction with the new maneuverable tactics lead to a change in defensive weapons, which should become easier and cheaper. And in the XVI century, a lightweight scaly armor gusoku work of famous masters Hisasige Matsunaga. Widespread receives its short form kogusoku consisting only of the chest plate nabedrennika, nagolennikov and naruchey, is used to gear the hordes of ordinary solzhat-infantry asigaru (legkonogie).
As a result of these changes a new system of hand to alleviate the battle armor kogusoku known as kogusoku and Koshi-no mavari (around back). Compared with eroi-kumiuti kogusoku arsenal was much broader. There are also familiar to us in judo and aikido rolls through the thigh, back, shoulder coups original opponent upside down and then lowering skull on pavement; variety podsechki; painful tricks on the elbow and knee, cervical vertebrae. In kogusoku already quite widely used attacks that are designed to defeat armor not covered parts of the body - the kidneys (a circular punch, bypassing the body), groin (kick type "uppercut" under the "skirt" armor), knee (foot shot edge) and so P. The invention kogusoku attributed Takenouti Hisamori, which was strong in spirit, but the growth of small and weak body, so they wanted to learn how to win over the strong and stalwart opponents by dexterity and technique.
Kogusoku at that time not replaced eroi-kumiuti, because the higher ranks of samurai still wore heavy armor that can protect even against mushketnoy bullets. As a result, many schools will dzyutsu imposed in its program, both of these types of hand-to-hand combat. An example of such a system is well-known school Singye Yagyu-ryu, where clear distinction between the level of asigaru - kogusoku, and the busi - eroi-kumiuti, but in addition there is a Ju-dzyutsu - the art of combat without a weapon (or a helper amlymi types weapons), and no armor, but this is the next stage of the evolution of Japanese wrestling.