Prefectural Earth Defense Force (県立地球防衛軍, Kenritsu Chikyū Bōei Gun) is a Japanese manga series by Kōichirō Yasunaga which ran in Shōnen Sunday Zōkan beginning in 1983. The manga was written as a parody gag manga inspired by the tokusatsu series Ultraseven. An anime OVA based on the manga was released in 1986. The anime was released on DVD in North America by ADV Films on April 18, 2006. Source: Wikipedia (en)