Shinobi-iri
is a stealth technique and system of methods for infiltration – particularly that studied in Ninjutsu. It was used by ninja agents secretly entering an area such as an enemy camp. Techniques for silent movement and climbing were combined with a range of specialized tools agents could rely on for their mission. means full-fledged ninja.
Entry methods
A system of five methods was used to enter an enemy zone. These Shinobi-iri are:
- Nyukyo no jutsu - correct timing
- Monomi no jutsu - finding weakness in defenses
- Nyudaki no jutsu - finding psychological weakness
- Yoji-gakure - distraction
- Joei-on jutsu - erasing light and sound
Nyukyo no jutsu involved the correct use of timing to make entry. Monomi no jutsu is to discover a weak place in the defences. Nyudaki no jutsu is finding and using a weakness in the psychological makeup of the guard, da referring to idleness, and ki means a dislike for being industrious. So essentially it was to find the point where the guard would not be bothered to respond. Yoji-gakure no jutsu involved the classic move of throwing an object in order to distract a guard's attention. Yoji means "toothpick" though commonly a stone or coin was thrown. Toothpick refers to the distraction being minor. When the guard went to investigate the noise the agent would slip past. Joei-on jutsu dealt with obliterating sound and light. It involved such things as keeping light sources between themselves and the guards, moving downwind to avoid alerting dogs and to reduce the likelihood of being heard. For example, by keeping a light between themselves and a guard in order to distract him, the ninja would also make it harder for any guard to see them, due to the difficulty of seeing beyond the light into the dark background where they were. So in Joei-on jutsu, light was being used to obliterate themselves, and sound was erased by positioning themselves where it travelled away from their targets.
Stealth arts
Further, the Stealth skills of the Shinobi or arts of invisibility are these:
- Inpo – the art of concealment
- Tonpo – the art of evasion and escape
- Shinobi-iri – the art of silent movement in darkness
Guidelines for Stealth Walking by Stephen K. Hayes |
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1. Maintain balance control by allowing your body weight to sink and be carried by deeply flexed knees. |
4. Use all joints for movement, emphasizing fluidity through the engagement of the ankles, knees, and hips for stepping. Avoid the lazy and dangerous habit of stiffening knees and swinging the entire leg from the hip. |
7. Pause and hold your position if you feel that you have accidentally caused too much noise. Listen for signs that you were heard, such as the movement of others or the immediate silencing of background noise following your slip. Sink a little lower on your knees to physically relax muscles that could normally jump with alarm. Take a deep breath and release it slowly to further relax. Continue your pause for as long as you feel is necessary to regain composure and allow possible listeners to decide they did not hear anything after all. |
References
http://cjj2004.tripod.com/budoryu/id25.html
http://www.netcomuk.co.uk/~golgotha/shiniri.htm