The third night of ROH & NJPW: War of the Worlds 2016 was a professional wrestling event co-produced by Ring of Honor and New Japan Pro-Wrestling, held on May 14, 2016, at Terminal 5 in New York City, and headlined by Jay Lethal & Roderick Strong vs. CHAOS (Kazuchika Okada & Tomohiro Ishii) vs. Bullet Club (Adam Cole & Matt Jackson).

The first night of War of the Worlds 2015 was a professional wrestling event co-produced by Ring of Honor and New Japan Pro-Wrestling, held on May 12, 2015, at the 2300 Arena in Philadelphia, Pennsylvania, and headlined by The Briscoes vs. Kazuchika Okada & Shinsuke Nakamura.

The second night of War of the Worlds 2015 was a professional wrestling event co-produced by Ring of Honor and New Japan Pro-Wrestling, held on May 13, 2015, at the 2300 Arena in Philadelphia, Pennsylvania, and headlined by Bullet Club (AJ Styles, Matt Jackson & Nick Jackson) vs. The Kingdom (Adam Cole, Matt Taven & Michael Bennett).

The first night of ROH & NJPW: War of the Worlds 2016 was a professional wrestling event co-produced by Ring of Honor and New Japan Pro-Wrestling, held on May 9, 2016, at the Ford Community & Performing Arts Center in Dearborn, Michigan, and headlined by Adam Page, The Motor City Machine Guns (Alex Shelley & Chris Sabin) & The Briscoes (Jay Briscoe & Mark Briscoe) vs. Bullet Club (Adam Cole, Matt Jackson, Nick Jackson, Tama Tonga & Tanga Loa).

ROH & NJPW: War of the Worlds 2014 was a professional wrestling event co-promoted by Ring of Honor and New Japan Pro-Wrestling, held at the Hammerstein Ballroom in New York City and headlined by AJ Styles (c) vs. Michael Elgin vs. Kazuchika Okada for the IWGP Heavyweight Championship.

The third night of War of the Worlds 2017 was a supershow co-produced by New Japan Pro-Wrestling (NJPW) and Ring of Honor (ROH) that took place on May 12, 2017, at the Hammerstein Ballroom in New York City, New York, and was headlined by Christopher Daniels (c) vs. Jay Lethal vs. Cody for the ROH World Title.

The third 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 20, 2017, at the Edinburgh Corn Exchange in Edinburgh, Scotland, and was headlined by a Street Fight between Jay Lethal and Silas Young.

The second night of War of the Worlds 2017 was a supershow co-produced by New Japan Pro-Wrestling (NJPW) and Ring of Honor (ROH) that took place on May 10, 2017, at the Ford Community & Performing Arts Center in Dearborn, Michigan, and was headlined by an Eight Man Tag Team Match pitting CHAOS (Beretta, Hirooki Goto, Rocky Romero & Will Ospreay) vs BULLET CLUB (Cody, Hangman Page, Matt Jackson & Nick Jackson).

The first night of War of the Worlds 2017 was a supershow co-produced by New Japan Pro-Wrestling (NJPW) and Ring of Honor (ROH) that took place on May 7, 2017, at the Ted Reeve Community Arena in Toronto, Ontario, Canada, and was headlined by a Six Man Tag Team Match pitting Hiroshi Tanahashi & The Addiction (Christopher Daniels & Frankie Kazarian) against BULLET CLUB (Kenny Omega, Matt Jackson & Nick Jackson).

The second 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 19, 2017, at the Liverpool Olympia in Liverpool, Merseyside, England, and was headlined by Cody (c) vs. SANADA for the ROH World Title.