Ninjutsu is a traditional Japanese martial art that focuses on the skills and techniques used by the ninja, covert agents in feudal Japan. It encompasses various disciplines, including stealth, espionage, and guerrilla warfare. Practitioners of ninjutsu learn to move silently, gather intelligence, and execute strategic plans, often using tools and weapons like shuriken and smoke bombs. The practice of ninjutsu is rooted in historical techniques developed for survival and combat. Today, it is taught in various schools, often emphasizing physical fitness, mental discipline, and self-defense. Many modern practitioners also explore the philosophical aspects of ninjutsu, which include adaptability and resilience.