+Ninja were covert agents and mercenaries in feudal Japan, masters of espionage and sabotage. Often depicted as shadow warriors, their unique skills were honed through [Ninjutsu](/wiki/ninjutsu), distinct from the openly martial [Samurai](/wiki/samurai).
+## See also
+- [Feudal Japan](/wiki/feudal_japan)
+- [Martial Arts](/wiki/martial_arts)
+- [Espionage](/wiki/espionage)
... 1 more lines