ROH & NJPW & RPW & CMLL: War of the Worlds UK - Day 1.

The first night of War of the Worlds UK was a multi-promotional supershow jointly produced by Consejo Mundial de Lucha Libre (CMLL), New Japan Pro-Wrestling (NJPW), Revolution Pro Wrestling (RPW), and Ring of Honor (ROH), that took place on August 18, 2017, at York Hall in London, England, and was headlined by a Ten Man Tag Team Match pitting BULLET CLUB (Cody, Hangman Page, Marty Scurll, Matt Jackson & Nick Jackson) against Los Ingobernables de Japon (BUSHI, EVIL, Hiromu Takahashi, SANADA & Tetsuya Naito).