[34] The Australian Bandidos are allied with the Diablos,[7] Mobshitters,[8] and Rock Machine,[9] while their rivals include the Comancheros,[8] Finks,[15] Gypsy Jokers,[17] Hells Angels,[8] Mongols,[8] Notorious,[22] Rebels[8] and Red Devils.

[35] At the request of Dutch authorities, Belgian police searched a property in Borgloon in May 2015 as part of an operation against the Bandidos that also included raids carried out in the Netherlands and Germany.

[36] Bandidos members were among a number of people arrested in Limburg on 28 September 2020 as part of an investigation into a large-scale drug trafficking ring, which began after a shipment of almost 3,000 kilograms of cocaine was discovered at the Port of Antwerp in late 2019.

Two members of the probationary Bandidos chapter in the city – Ronald Charles Burling and Jason Llewellyn Michel – and another two men – Josh Adam Curwin and Billy Jo Ducharm – whom police were unable to identify as connected to the club were charged with aggravated assault and abduction.

Although Hells Angels member and police informant Steven Gault testified that he was recruited to be the hitman in the plot against Lenti, Akleh and Stephenson were ultimately acquitted on 19 January 2009.

[62] The biker war, which was initiated when the much smaller Rock Machine formed an affiliation – "the Alliance" – with Montreal crime families such as the Pelletier clan and other independent dealers who wished to resist the Angels' attempts to establish a monopoly on street-level drug trade in the city,[63][64] ended with mass killings by the Hells Angels,[65] plus public outcry over the deaths of innocent bystanders[66] resulted in police pressure including the incarceration of over a hundred bikers.

[67] The law enforcement operation Project Amigo, which began in 2001 originally as an investigation of the Rock Machine, led to the arrest of every Bandidos member in Quebec in June 2002, effectively ending the club's presence in the province.

When Bandidos Finland president Marko Hirsma arrived at a Helsinki court house for the trial of Blom and Tapani on 27 September 1995, he was attacked and beaten by Hells Angels and Cannonball members.

On 18 January 2000, members of the Bandidos and their support club Black Rhinos MC were present at the men's trial and visited a nearby restaurant during a recess in the proceedings where they were ambushed by three gunmen.

In April 2001, three Rogues Gallery members who were former Cannonball bikers – Pertti Hämäläinen, Sami Koivula, and Eikka Lehtosaari – were convicted of the restaurant triple murder and sentenced to life in prison.

The Bandidos continuously pursued their former president due to his consorting with other clubs after his expulsion, beating him and robbing him of his motorcycle in Germany in the spring of 2000, and strafing his home with submachine gun fire in the autumn of that year.

[92] In March 2017, charges against six members of the Bandidos' Nokia chapter accused of membership of a criminal group, and importing liquid amphetamine from Germany to Finland, were dropped as the Pirkanmaa District Court did not find sufficient evidence.

[96] In June 1991, the clubhouse of the Wanted Bikers, a club in Haute-Savoie affiliated to the Bandidos but wishing to instead begin an association with the Hells Angels, was shot at and the motorcycles parked outside were destroyed.

[107] The Federal Criminal Police Office has accused the Bandidos of involvement in illegal gambling, prostitution, arms dealing, extortion, money laundering and drug trafficking.

[147] On 27 May 2015, a large police operation and raids on thirty locations across Limburg, Brabant and neighboring regions in Belgium and Germany, including several homes of club members, led to the discovery of five rocket launchers, many automatic weapons, explosives and illegal fireworks.

[154] Three Bandidos associates – Jesse James Winter, Alvin Rivesh Kumar and Nicholas Andrew Hanson, a club prospect – were imprisoned for a combined twenty-five years and nine months in November 2017 for the assault and stabbing of a man in Christchurch on 30 August 2015.

[155] Bandidos member Adrian Le'Ca was sentenced to fifteen years and nine months' imprisonment in February 2018 after pleading guilty to charges relating to the importation and possession for supply of methamphetamine and cocaine.

[167] Hells Angels Oslo chapter president Torkjell "Rotta" ("Rat") Alsaker was found guilty of shooting Harnes and sentenced to three years in prison in November 1998.

[173] The Bandidos' clubhouse in Drammen was reduced to rubble on 4 June 1997 when a van bomb was detonated outside, killing Irene Astrid Bækkevold, a fifty-one-year-old woman who was driving past in her car.

[176] Irene Bækkevold was the second civilian killed in the biker war, and the subsequent public backlash and increasing scrutiny from law enforcement forced the Bandidos and Hells Angels to end their conflict.

The war formally concluded on 25 September 1997, as Danish representatives from both clubs called a truce and agreed to divide territory of criminal activity into geographical areas, and to cease expansion in the Nordic countries.

[187] Three former Bandidos members were acquitted of anti-organized crime legislation charges, but were convicted of extortion and accepting money to carry out contract killings along with a fourth man by Jæren District Court in July 2013.

Authorities believe a potential target of the attack was Mário Machado, a member of the Bandidos-affiliated Red & Gold gang and former leader of the Portuguese Hammerskins, who escaped harm as he was late to the meeting.

Internal pressure, as well as increased scrutiny from law enforcement and public backlash – particularly in Denmark and Norway, where innocent bystanders had been killed in attacks by bikers – brought an end to the conflict, which officially ceased on 25 September 1997 when the rival clubs established a truce.

[213] Ahmed "Manolo" Mohamed, a member of both the Stockholm Bandidos and the criminal Bredängs network, was convicted of grievous assault in 2013 after he stabbed a person wearing a Hells Angels jersey.

[217] In April 2018, police discovered a haul of thirty-seven firearms – including thirteen automatic rifles – and 7,400 rounds of ammunition of various kinds, seventeen plastic explosives, forty-two sticks of dynamite, remote-controlled triggers, 131 tear gas grenades, and ten kilograms of drugs – cocaine, amphetamine, MDMA, cannabis and tramadol – in two stolen cars in a parking garage in Skärholmen, Stockholm.

Police raided the Bandidos' Stockholm chapter clubhouse on 7 November 2018 and arrested the branch vice-president Ozan Sarikaya, who was charged with drug and weapons crimes, and violation of the Flammable and Explosive Goods Act.

[218] Bandidos member Aghvan Baghdasaryan, and his friends Nima Morravej and Sammy Hyväoja, were involved in a shooting of rival drug dealers in Borlänge on 11 January 2019 that left one man dead and another wounded.

A dozen Bandidos were celebrating a member's birthday when they were attacked by the Hells Angels, who summoned support from the Broncos, allegedly for wearing their colors at a motorcycle rally in nearby Murten earlier that day.

[231] During a crackdown on foreign gangs in the country launched by the Central Investigation Bureau (CIB) in 2014, Thai police stated that the Bandidos are active in Koh Samui and Phuket, where they are involved in illegal land development.