|Absolutely Invincible Law: Millennial Citadel Technique|
|Rōmaji||Zesshōhohō: Chitose no Yōsai no Jutsu|
|English anime||Thousand Year Fortress Jutsu|
|Appears in||Anime, Manga|
|Classification||Ninjutsu, Barrier Ninjutsu|
|Class||Offensive, Defensive, Supplementary|
The Absolutely Invincible Law: Millennial Citadel Technique (絶招歩法: 千年の要塞の術, "Zesshōhohō: Chitose no Yōsai no Jutsu") is a barrier ninjutsu that creates an implosion barrier around a desired perimeter.
The technique appears to be the same as the Absolutely Invincible Law Technique with a limited amount of force applied on those within so as not to rush them but with enough force outside so as to keep foes or enemy attacks out.
Further protected by Yang Release, the barrier is incredibly dense and difficult to destroy. A like-ranked jutsu or stronger would be required to disable it.