Tank Knights Fortress (Hangul: 포트리스, Poteuliseu in short or 무한 전기 포트 리스, Muhan Jeongi Poteuliseu full name) is a South 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.

It also has an array of original merchandise such as manga, on-line games, toy figures and an audio CD soundtrack.

The animated series known as Tank Knights Portriss 無限戦記ポトリス (Mugen Senki Potorisu).

This show was broadcast in Japanese language on TV Tokyo from April 5, 2003 to March 27, 2004.

Five months after its Japanese telecast, the Korean language version, which was being shown on SBS, aired from August 6, 2003 to June 17, 2004 with 52 episodes.

One of the most-popular hit animation TV series was inspired by South Korea online game developed by AllStar and published by Softzen.

Tank Knights Fortress has also hero or heroine what motivated from 12 characters of game.

But the harmony was disrupted because of the sudden presence of a dictator named Dark Fortress along with his evil schemes.

Besides the fact that individual the blue dragon is imitated it has shooting skill necessary, with the barrel and vin rose carry it draws out, cooperation attack "of the sword of triune light" and the "super unlimited union Omega violent bullet" etc.

Japanese: カタパルトカタ Korean: 캐터 "Catapult of Fortress Military Affairs".

Japanese: ユウマ Korean: 유마 Construction of a human boy popped through the warped space.

Fortress as articles and fusion, the mechanism and unity, will become a special ability.

Ability to fuse with that machine, Yuma was a mutant, because the man in the world is dominated by the giant computer in his country's afraid of him, while all of his memories erased them tossed out of space.