Hatsumi Masaaki is a prominent Japanese martial artist and the founder of the Bujinkan, a martial arts organization that teaches traditional Japanese martial arts. Born on December 2, 1931, he is known for his expertise in various styles, including Ninjutsu and Taijutsu. Hatsumi has dedicated his life to preserving and teaching these ancient techniques, emphasizing their practical applications in modern self-defense. In addition to his martial arts career, Hatsumi is also an author and has written several books on martial arts philosophy and training. He has traveled extensively, sharing his knowledge and skills with students around the world, making a significant impact on the global martial arts community.