Ninja warriors, or shinobi, were covert agents in feudal Japan known for their skills in espionage, sabotage, infiltration, and guerrilla warfare. Unlike the noble samurai, ninjas often operated in secrecy and were employed by feudal lords during times of conflict to gather intelligence or carry out assassinations. Their training emphasized stealth, agility, and unconventional tactics, often blending martial arts, disguise, and knowledge of poisons and explosives. 

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