The Invasion (professional wrestling)
As part of its plans, Lance Storm became the first WCW wrestler to appear on WWF programming, by running in during a match on the May 28 episode of RAW while a match was being held.  At King of the Ring 2001 on June 24, then-WCW wrestler Booker T interfered during the Triple Threat Main Event match for the WWF Championship and almost cost Stone Cold Steve Austin the title. Also, Austin suffered fractured bones in his hand from the side slam he took from Booker into an announce table. The next night, a confrontation occurred between WCW owner Shane McMahon and WWF owner Vince McMahon.  While Vince was in the ring, Booker T came from behind to deliver his trademark scissor kick to Vince. The WWF roster ran to the ring to the aid of Vince, but Booker T and Shane McMahon escaped through the crowd. This incident marked the official start of the Invasion storyline, to which RAW announcer Jim Ross announced, "The battle lines have been drawn!"