Tatenokai is a Japanese organization founded in 1969 by Yoshio Kodama, a former member of the Japanese Imperial Army. It was established as a right-wing nationalist group, primarily focused on promoting Japanese nationalism and traditional values. The organization gained attention for its controversial activities, including protests and demonstrations against perceived threats to Japan's cultural identity. The group is known for its strong opposition to foreign influence in Japan and its advocacy for a more assertive national defense policy. Over the years, Tatenokai has been involved in various political movements and has attracted a following among those who share its nationalist sentiments.