Beginning in 2009 the Mexican wrestling promotion International Wrestling Revolution Group (IWRG; Sometimes referred to as "Grupo Internacional Revolución" in Spanish) held their first ever "Guerra Revolucionaria" ("The Revolutionary War"), a reference to the Mexican revolutionary war (1810–1821). The main event of the first and all subsequent "Guerra Revolucionara" shows is the eponymous "Guerra Revolucionaria" tournament. The tournament is a 20-man match contested under "lucha libre" elimination rules where a wrestler can be eliminated from the match via losing a pinfall, being forced to submit, counted out of the ring for being away from the ring too long or disqualified for breaking a rule. Unlike other elimination matches the eliminated wrestlers would not leave the ring, but remain on the floor to act as "Lumberjacks", tasked with keeping the remaining wrestlers in the ring for the "Guerra Revolucionaria" match itself. Each "lumberjack" is given a leather strap by an IWRG official that they are free to use on any wrestler that leaves the ring, regardless of if said wrestler was thrown out of the ring by an opponent of if they left the ring voluntarily. As the match goes on more and more lumberjacks are on the floor until only one wrestler remains, deemed the winner of the "Guerra Revolucionaria". The first "Guerra Revolucinaria" show was held on March 29, 2009. IWRG held the second "Guerra Revolucionaria" show on October 31, 2010 turning it into a regular, semi-annual event. The third "Guerra Revolucionaria" show took place on November 20, 2011. IWRG did not hold a "Guerra Revolucionaria" show in 2012, but brought it back on November 10, 2013 for the fourth "Guerra Revolucionaria" show. There was no "Guerra Revolucionaria" show in 2014, but IWRG did hold their fifth "Guerra Revolucionaria" in 2015. All "Guerra Revolucionaria" shows have been held at IWRG's home arena, Arena Naucalpan in Naucalpan, State of Mexico, Mexico.