Cable (Nathan Summers) is a fictional character appearing in American comic books published by Marvel Comics, commonly in association with X-Force and the X-Men. The character first appeared as a newborn infant in Uncanny X-Men #201 (Jan. 1986) created by writer Chris Claremont, while Cable's adult identity was created by writer Louise Simonson and artist/co-writer Rob Liefeld, and first appeared in The New Mutants #87 (March 1990). Nathan Summers is the biological son of the X-Men member Cyclops (Scott Summers) and Madelyne Pryor (Jean Grey's clone), the "half" brother of Rachel Summers and Nate Grey, and the genetic template for Stryfe. He is from a possible future timeline, having been transported as an infant to the future, where he grew into a warrior, before returning to the present.

In his first adult appearance, Cable is seen in conflict with Stryfe's Mutant Liberation Front, the United States government, and Freedom Force. The New Mutants intervened and he asked for their help against the Mutant Liberation Front. Cable saw them as potential soldiers in his war against Stryfe. He became their new teacher and leader, and outfitted them. He came into conflict with Wolverine, noting that the two had an old feud between them. Cable and the New Mutants teamed up with Wolverine and Sunfire against the MLF. Cable also led the New Mutants against the Genoshans.  With the aid of Domino, Cable reorganized the New Mutants into X-Force. The New Mutants ended with issue #100, with Cable and other characters then appearing the following month in X-Force #1. The X-Force series provided further detail for the character's back story revealing that he was from the future and that he had traveled to the past with the aim of stopping Stryfe's plans as well as preventing Apocalypse's rise to power. Cable traveled between the 1990s and his future with his ship Graymalkin, which contained a sentient computer program called Professor, the future version of the program built into X-Factor's Ship.  In 1992, the character had a two issue miniseries, titled Cable: Blood and Metal, written by Fabian Nicieza, pencilled by John Romita, Jr., and inked by Dan Green, published in October and November of that year. The series explored Cable and the villain Stryfe's ongoing battle with one another, and its effect on the people that surround Cable.

Answer the following question by taking a quote from the article: What is the new Mutants?
In his first adult appearance, Cable is seen in conflict with Stryfe's Mutant Liberation Front, the United States government, and Freedom Force.