Division X

The Division of Extra-terrestrial and Abnormal Operations: Containment Foundation X (地球外および異常作戦の部門：封じ込め財団), simply referred to as Division X (部門), was a corrupt governmental organization and a final antagonist in Advanced Battle. Its remnants briefly appear in Ocean Blue.

The division was created to monitor abnormal activity on Earth, directed by Ezekiel Connolly until he was killed and impersonated by Xeno. Under his leadership, the division used Keiichi's group to track down and capture mutants for personal gain. The organization assigned agents Xander Summers and Russell Johnson, and after the attack on their headquarters, it attempted to cover up Xander's subsequent murder.

However, Xeno was exposed and Division X was taken down by Keiichi and the Alliance. Several remnants later joined Dakera in his activities on Kingdom Island and were either defeated or killed in the ensuing explosion.

Re:Evershade
Much like Division X from the Advanced Battle arc in the manga, Division X in the anime was led by Ezra Connolly, carrying out his duty as the director of the division until being killed and impersonated by Zeno. Unlike his alternate counterpart, Ezra was not inherently malicious and did not try to kill mutants.

Like the previous Division X, this version also attempts to remain incognito. The division recruits Kierian Haven's group to battle against an army of mutants led by the Alliance, following the East City mutant outbreak, assigning agents Russell Johnson and Xander Summers to the team. However, after they defeat the mutant invasion, Xander is killed by Zeno and the murder is covered up by agents who pin suspicions on Sky Violette. This prompts Russell to launch his own investigations while leading Kierian and his group to safety.

Through their actions, the world became aware of the fact that Division X was evil and discover Zeno's identity, briefly allying with a few members of the Alliance to defeat the mad android. After the battle in which Division X's primary headquarters was heavily destroyed, all its classified files were dumped on the Internet, and the agency was disavowed by its commanding governments and labeled a terrorist organization. Many of Division X's officials escaped and joined Dakera in his operations on Kingdom Island, and become responsible for the manhunt on Kierian and Sky following their arrival on the island. During the final battle, however, Division X's remnants were killed by a mythical beast.