Ninja (忍者) or Shinobi (忍び) were “special” agents of the feudal Japan - stealth soldiers and mercenaries hired mostly by the daimyo. They roles were based on unorthodox warfare methods – espionage, sabotage, assassination, escort, and sometimes even open fight. It began as military strategy of emperor Fushigitei and by the time of Kotei it was fully employed.
andremeister: Onna Bugeisha - Real Samurai Women! Here are some cool info about samurai women! :) And some pictures too hehe http://www.kusuyama.jp/the-powerful-onna-bugeisha-female-samurai-warrior/ http://barbaralazar.com/2013/06/more-real-female-samurai/