X-Force is a fictional Marvel Comics superhero team, one of several spin-offs of the popular X-Men franchise. Conceived by writer/illustrator Rob Liefeld, the team was formed in The New Mutants #100 (April 1991) and soon afterwards was featured in its own series.
The group was a new incarnation of the 1980s team, the New Mutants. Led by the gun-toting mutant Cable, X-Force was more militant and aggressive than the X-Men. X-Force was successful in the early 1990s. The series'' popularity waned after Liefeld left, causing Marvel to implement several reforms in the title from 1995 until 2001 with varying degrees of success.
Low sales on the series prompted Marvel to revamp the title in 2001 with a new cast in the form of a group of self-interested young mutants who were gathered together by a corporation to become media stars and used the name X-Force. X-Force (vol. 1) was cancelled with #129 and relaunched as X-Statix, which featured the later incarnation of the team. After X-Statix was cancelled with #26, Marvel reunited the original X-Force team for a six-issue 2004 miniseries plotted and drawn by Liefeld.