The group's organizational structure is fairly decentralized with many subgroups present at the stadium's north stand – the gathering point of the club's most loyal and passionate fans.

The fact that nearly all pre-war Sarajevan clubs were banned by the new communist authorities left a large vacuum in a city that was traditionally a footballing centre in the Kingdom of Yugoslavia.

The only major Sarajevan football club not banned by the post-war authorities was FK Željezničar, based in the Grbavica neighbourhood of the city, which would go on to become the maroon-white's biggest rival.

The nickname, meaning a consumer of the local Bosnian dish pita, was originally a derogatory label given by fans of working class Željezničar that implied the upper-class background of most FK Sarajevo supporters.

As Sarajevo folklore stipulates, no footballer was ever fully accepted by the eastern stand which was for decades known as a polygon for the city's particular sense of humour and as the main proving ground for every player wearing the maroon and white jersey.

The legendary east stand was generally a meeting point for residents of the Sarajevan mahalas that would picnic with their friends, relatives and neighbours while watching matches, only fully supporting players that stemmed from the city's downtown neighbourhoods – a particular form of local patriotism that has, in a way, survived until today.

Nevertheless, alarmed by constant incidents and media coverage, the club management headed by then Director Svetozar Vujović opened the north stand of the Koševo stadium to the most fanatical of fans.

Namely, several prominent FK Sarajevo supporters of the younger generation, influenced by the Ultras subculture decided to meet, as the story goes, in an alternative nightclub of the time known as AG and create a new identity based on a popular Zagor comic book of the same name.

A memorial plaque on the north side of the Asim Ferhatović Hase Stadium bears tribute to the hundreds of members of the group killed in the fight for Bosnian independence.

By 2008 physical altercations and violence between the opposing camps turned the city into a battle ground, eventually leading to the younger generation taking control of the north stand.

In April 2010 Horde zla invaded the pitch after Sarajevo played a 1:1 draw against NK Široki Brijeg, and eventually went on to demolish large portions of the stadium including the VIP box and the benches in clashes with the police and security personnel.

[10] On 25 September 2013 Horde zla invaded the pitch during a game versus FK Borac, charging on the visiting fans situated on the South stand of the Asim Hase Ferhatović stadium.

Horde zla burned cars, nearly blew up a gas station and demolished shops while Škripari and residents of Široki Brijeg stoned visiting fan's buses and shot at them with firearms.

[23] A local policeman, Oliver Knezović, accused of murdering Puljić, fled to Zagreb, Croatia from where he could not be extradited to the authorities of Bosnia and Herzegovina, as there is no agreement on this issue between the two countries.

[25] The relationship traditionally stems from the fact that both sides share unique maroon and white club colours, which lead KK Bosna Royal to garner most of its fan base from FK Sarajevo in its rise to the top in the mid and late 1970s.