The XSE was founded by Storm at the behest of the United Nations in order to police the growing mutant population. Though initially Storm acted alone, she soon signed up the other members of the X-Treme X-Men as officers, forming a legitimate mutant organization (though not the first, with the second X-Factor having been government-run).
After a confrontation with the Fury, Cannonball took a leave of absence to recuperate from his injuries. He then joined the newly reformed X-Force team, but and then returned to the X.S.E. team. Sage, meanwhile, rejoined the Hellfire Club to keep an eye on Roberto da Costa (who had become the new Lord Imperial) to make sure he was not corrupted by power, like Sebastian Shaw. After the effects of M-day Storm stayed in the African country of Niganda to help bring things back to normal.
Since M-Day and the enactment of the SHRA, the team has largely ceased its activities as Law enforcement, concentrating on cleaning up the damage from the day and liaising with the US Governments O*N*E program.
Equipment: None known.
Transportation: None known.
Weapons: None known.
- Though founded in the latter issues of the X-Treme X-Men comic book, the team's adventures have transferred to Uncanny X-Men following the return of writer Chris Claremont to that book.
- Rogue and Gambit were also associated with XSE, although they were seemingly not official members. A letters page claimed Magma was also a member of the team, but this has never been borne out by the actual stories.
- No trivia.
- 13 X-Treme Sanctions Executive (Earth-616) Members
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