On June 1, 2008, Smith became the champion again after defeating Chase Del Monte in a tournament final held at Suffolk Downs.

Smith made his ROH debut on July 27 a losing effort in a four-corner survival also featuring Brian Fury, Kongo, and Vinny Marseglia.

[11] As a result, he earned an ROH World Television Championship match against reigning champion Tommaso Ciampa at the 12th Anniversary Show, but was unsuccessful.

[14] On December 18 at Final Battle, War Machine defeated The Kingdom (Matt Taven and Michael Bennett) to win the ROH World Tag Team Championship.

[18] This led to a match five days later, where War Machine unsuccessfully challenged Smith and Archer for the GHC Tag Team Championship.

[19] In November 2016, War Machine made their debut for New Japan Pro-Wrestling (NJPW) by entering the 2016 World Tag League.

[21] On April 9, 2017, at Sakura Genesis 2017, War Machine defeated Tencozy (Hiroyoshi Tenzan and Satoshi Kojima) to win the IWGP Tag Team Championship.

[22] They lost the title to Guerrillas of Destiny (Tama Tonga and Tanga Loa) on June 11 at Dominion 6.11 in Osaka-jo Hall,[23] regaining it in a no disqualification match on July 1 at G1 Special in USA.

[24] They lost the title to Killer Elite Squad in a three-way match, also involving Guerrillas of Destiny, on September 24 at Destruction in Kobe.

[26] On the edition of April 11, 2018 of NXT, he and Rowe, dubbed War Machine, made their TV debuts, attacking Heavy Machinery (Otis Dozovic and Tucker Knight) and the team of Riddick Moss and Tino Sabbatelli.

[43] In October 2024, cryptic messages began airing on Raw featuring Nordic characters that translate to "WAR" to promote the team's return.

On the October 14 episode of Raw, Ivar and Erik returned defeating Alpha Academy reverting back to their War Raiders name and gimmick.

[44] On the December 16 episode of Raw, The War Raiders defeated Bálor and McDonagh to become two-time Word Tag Team Champions.