Iai-jutsu

this is an art of drawing a sword out of a sheath[1]Iai jutsu is the rapid deployment of the sword with combative intent. It is a separate area of study with its own distinct waza. As a classical art Iai jutsu concerns itself with three primary considerations, combat, mental and physical disciplines that ranged on what you were feeling and what you wanted. The ability to rapidly and fluidly draw the sword and successfully engage an enemy was crucial to the samurai both in attack and defense.
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