A specific set of skills of or related to the acts of espionage, stealth, counter-intelligence, and assassination.
Ninjutsu (忍術) is the collected set of skills of the ninja, a type of feudal Japanese mercenary. These skills may include, but are not necessarily limited to:
- Espionage
- Escape
- Evasion
- Distraction
- Guerilla tactics
- Weapons use
- Unarmed combat
The most widely recognized organizations claiming to teach ninjutsu are the Bujinkan, Genbukan, and Jinenkan.