Wrestle Kingdom 9
On August 10, 2014, NJPW made two announcements. Firstly, Wrestle Kingdom 9 would be held at the Tokyo Dome on January 4, 2015. Secondly, NJPW revealed a partnership with Jeff Jarrett's Global Force Wrestling, which it approached about bringing the event to a new market. On November 4, GFW announced that it would present the event live on American pay-per-view television and that it had a PPV market of 125 million homes.
Wrestle Kingdom II
On February 17, 2008, Shinsuke Nakamura defeated Kurt Angle to unify the two versions of the IWGP Heavyweight Championship. Afterwards, both the second and third generation title belts were retired with Nakamura being awarded a brand new belt to represent the IWGP Heavyweight Championship. The fourth generation belt was created to symbolically end the issues surrounding the championship and start anew.