The Road Warriors (Animal and Hawk) signed with the World Wrestling Federation in 1990, and were pushed into a feud with Demolition. Due to his health, Ax was replaced by a new member of Demolition, Crush. However, fans did not react as strongly to this new Demolition team as they had to the original configuration, and the feud was considered a disappointment.
Just over a year after signing with the WWF, the Legion of Doom won the WWF World Tag Team Titles and held them for about 8 months. When they lost the titles they briefly left the WWF only to return with longtime manager Paul Ellering by their side, as well as a wooden dummy called “Rocco”. Both members of the L.O.D. thought the gimmick was stupid, as did most of the fans and it led to Hawk quitting the WWF, leaving Animal on his own.
In 1997, they returned to the WWF, where the Legion of Doom took part in the feud between ”Stone Cold” Steve Austin and the Hart Foundation, siding with Austin. The Legion of Doom also became 2 time tag-team champions on October 7, 1997 when they defeated The Godwinns. In November 1997 the Legion of Doom faced the newly formed New Age Outlaws (Road Dogg and Billy Gunn) and shockingly lost the titles to the upstart team.
On an episode of Monday Night Raw, L.O.D. challenged D-Generation X in a Tag Match. During the match, The New Age Outlaws attacked L.O.D. and shaved off one of Hawk's mohawks, and threw Animal through the announcers table.
After several unsuccessful challenges the L.O.D. were repackaged as Legion of Doom 2000 with manager Sunny, although she did not stay with the team for long.
They then moved into an edgy storyline. The storyline found the Legion of Doom crumbling as Hawk repeatedly showed up to matches apparently drunk or under the influence of drugs, and began demonstrating suicidal tendencies. In order to stabilize the team, a third member, Puke, was introduced. This led to the conclusion of the storyline, in which a suicidal Hawk climbed to the top of the TitanTron, the giant television monitor erected during episodes of WWF's Monday Night Raw to show match highlights to fans in attendance. Puke, supposedly attempting to rescue Hawk, climbed after him, only to apparently throw Hawk over the side (with a special effect being used to make it appear as though fans could see Hawk's body plunging a fatal distance behind the screen); Puke then revealed that he had been enabling Hawk's drug addiction in order to kill him and take his place in the Legion of Doom. Being forced to act out Hawk's personal demons onscreen eventually proved too much for both Hawk and Animal, and both men quit the company shortly after the "Puke killed Hawk" incident.
Animal and Hawk made a surprise appearance on Raw on May 12, 2003 when they took on Kane and Rob Van Dam for the World Tag Team Championship. Although Hawk and Animal came up short in their attempt to become three-time champions, it was clear that Hawk had defeated the demons that had once kept him from competing, and the Road Warriors had hopes of returning to WWE.
Hawk died on October 19, 2003.
Animal returned to WWE in mid-2005 and decided to dedicate his entire run to Hawk, including his tag team title victory with Heidenreich at The Great American Bash.
On the March 28, 2011 episode of Raw, it was announced that the Road Warriors would be inducted into the WWE Hall of Fame Class of 2011. On April 2, 2011, the night before WrestleMania XXVII they, along with Paul Ellering were inducted into the Hall Of Fame by Dusty Rhodes.