New Japan Pro-Wrestling
The promotion was founded by Antonio Inoki in 1972 after his departure from the Japan Pro Wrestling Alliance promotion. The first NJPW event took place on March 6, 1972, in Tokyo. Inoki would serve as the president of the promotion until 1989, when he stepped down to pursue a political career as a member of the Japanese House of Councillors. The promotion was a member of the National Wrestling Alliance (NWA) from 1975 to 1985 and once more from 1992 to 1993. NJPW was briefly reaffiliated with the NWA in the late 2000s to the early 2010s as well.
Westside Xtreme Wrestling
On July 18, 2015, New Japan Pro-Wrestling announced a working relationship with wXw as part New Japan's international expansion plans Which ended in 2016 due to wXw working with to much promotions and not having any Collaborated events. And not being in NJPW events in Europe, Also not having wXw titles being defended in NJPW events and no talent exchanges.