Tank Knights Fortress (Hangul: 포트리스, Poteuliseu in short or 무한 전기 포트 리스, Muhan Jeongi Poteuliseu in full name) is a Korean-Japanese co-produced animated series by SBS Productions, Dong Woo Animation and Daewon Media of South Korea in partnership with SUNRISE, NAS and Bandai Visual of Japan. This animated series being broadcast and shown in the Philippines and Taiwan. It also has an array of original merchandise such as on-line games, toy figures and audio CD soundtrack.