YPG International[1][2] Antifascist Forces in Afrin TKP-Kıvılcım Kurdistan Workers' Party The International Freedom Battalion (Turkish: Enternasyonalist Özgürlük Taburu; Kurdish: Tabûra Azadî ya Înternasyonal; Arabic: طابور الحرية العالمي), commonly abbreviated as IFB or EÖT, is a revolutionary socialist armed group consisting of leftist foreign fighters fighting for the People's Defense Units in the Syrian Civil War in support of the Rojava Revolution and against the Turkish Armed Forces, the Syrian National Army, and Islamic State.

These groups include: The United Freedom Forces (Turkish: Birleşik Özgürlük Güçleri, or BÖG), inspired by the International Brigades of the Spanish Civil War, were founded in December 2014 in the town of Kobanî as an organization of foreign leftist fighters of both revolutionary socialist and anarchist convictions.

[23] The Revolutionary Union for Internationalist Solidarity (Greek: Επαναστατικός Σύνδεσμος Διεθνιστικής Αλληλεγγύης, abbreviated as ΕΣΔΑ) is an armed fighter group from Greece.

[28] Steve Hedley, senior assistant general secretary of the RMT, said: "Bob would have been honoured that young people from Britain would fight the forces of evil in his name.

"[29] After Turkey and its allied rebel groups invaded parts of northern Syria and clashed with the Syrian Democratic Forces, Turkish officials stated that they will treat British and other foreign volunteers fighting alongside the YPG as terrorists.

[30][31] On 2 September, the Bob Crow Brigade relocated from the Raqqa front to Manbij and stated "When we came to defend the revolution we meant from all enemies, big or small".

[25] The group expressed solidarity with the CGT union and the Air France workers on trial for the "shirt-ripping case" over an incident on 5 October 2015, which arose from a dispute over the aviation giant's plans to cut 2,900 jobs.

[35] The International Revolutionary People's Guerrilla Forces (abbreviated as IRPGF) was a militant, armed, self-organized, and horizontal collective of foreign anarchist fighters from around the world.

[41] The Queer Insurrection and Liberation Army (abbreviated as TQILA)[note 1] was a unit of the IFB announced on 24 July 2017, by members of the IRPGF from Raqqa City and disbanded on 24 September 2018.

[42] It adopted its name in homage to an American fighter of the International Freedom Battalion, Michael Israel, also known as Robin Agiri, killed by a Turkish bombardment northeast of al-Bab on November 24, 2016, during Operation Euphrates Shield.

[42] In its first press release, published on February 13, 2018, the brigade presented itself as a "group of communists, socialists, anarchists and anti-fascists, from all four corners of the world, [...] united in Rojava by the principles of solidarity, internationalism and anti-fascism".