Iaidō (居合道), abbreviated iai (居合), is a Japanese martial art that emphasizes being aware and capable of quickly drawing the sword and responding to sudden attacks.
Haruna Matsuo sensei (1925–2002) demonstrating Muso Jikiden Eishin Ryu kata Ukenagashi
Japanese girl practicing iaido with a custom-made student's katana or iaitō. In modern Japan, iaido is seen as one of the traditional martial arts and it can be practiced by both genders.
Iaido in the Czech Republic as demonstrated by Victor Cook Sensei
US dojo emblem
A Japanese sword is one of several types of traditionally made swords from Japan. Bronze swords were made as early as the Yayoi period, though most people generally refer to the curved blades made from the Heian period (794–1185) to the present day when speaking of "Japanese swords". There are many types of Japanese swords that differ by size, shape, field of application and method of manufacture. Some of the more commonly known types of Japanese swords are the uchigatana, tachi, ōdachi, wakizashi, and tantō.
Japanese swords. Two tachi with full mountings (middle and bottom right), a sword with a Shirasaya-style tsuka (top right), a wakizashi (top left), and various tsuba (bottom left).
A range of Japanese blade types, from left to right: naginata, ken, tantō, katana (uchigatana) and tachi (not to scale).
Tachi. The blade was made by Masatsune. Blade, 12th century; mounting, 18th century. Tokyo National Museum
A katana forged by Hizen Tadayoshi I. (Saijo Ō Wazamono) Azuchi–Momoyama period. (top) Katana mounting, Late Edo period. (bottom)