Ninjutsu; not necessarily a martial art; more like a practice of spying, gathering information trained in the art of non-detection complimented with avoidance, and as a trained killer. An assassin to say the least, which isn’t the typical career choice for the average bloke. It is espionage 101 elevated to the highest level of understanding developed with a specific skill set. Those who trained and learned these Ninjutsu skills were called Shinobi, or Ninja. Developed in Japan at a time when the country had a military government where some felt it needed internal intervention, Ninjutsu was taught as a separate discipline in traditional Japaneses martial arts schools. The historical lineage is disputed by different schools who each claim to be the only legitimate heir to the art, however common attributes within the lineages are Bōjutsu, Shurikenjutsu, Kenjutsu, and Sōjutsu. Ninjutsu requires strength and agility, along with keen awareness attributing to the success of being able to escape, disguise or conceal as needed. These are all common scenarios for a ninja, whose trained to use tactics of unconventional warfare. Training in parkour, archery, and learning medicine were also part of the Ninjutsu skill set. The international martial arts organization based in Japan, Bujinkan, currently represents several modern styles of Ninjutsu.