Three letters that you will not hear strung together on any new WWE broadcast are W-W-F. After being the three most important letters in company history, the WWF acronym was buried in 2002 after years of legal battles between Vince McMahon's professional wrestling promotion and the World Wildlife Fund, known as World Wide Fund For Nature outside the US and Canada. When Titan Sports first registered the WWF trademark in 1979, there was little opposition from the Fund. It wasn't until 1993 that the environmentalists filed an injunction in Switzerland that they threatened to take around the world, but the two sides came to an agreement the following year in which the wrestling company would limit its use of the W-W-F initials. McMahon seemingly violated this agreement as the initials were still utilized on his television programming just as they were prior to '94, but the likely catalyst for the Fund's 2001 London court victory came when McMahon registered the wwf.com domain. Vince fought and appealed but eventually submitted to the courts and changed his company's name to World Wrestling Entertainment (WWE) in 2002; it has since been renamed just WWE, with the letters no longer being an official acronym.