Input (grade 11): For the pay-per-view, see WWF InVasion. The Invasion was a professional wrestling storyline in the World Wrestling Federation (WWF) (known now as World Wrestling Entertainment or WWE) that began shortly after the WWF's purchase of World Championship Wrestling (WCW).
Output (grade 11): The Invasion was a wrestling storyline in the World Wrestling Federation (WWF) that began after the WWF bought World Championship Wrestling (WCW).