The Association against Bulgarian Bandits (, sr-Cyrl, Удружење против бугарских бандита) was a paramilitary organization based in
Štip
Štip ( ) is the largest urban agglomeration in the eastern part of North Macedonia, serving as the economic, industrial, entertainment and educational focal point for the surrounding municipalities.
As of the 2021 census, the city of Štip had ...
, then in the
Kingdom of Serbs, Croats and Slovenes
The Kingdom of Yugoslavia was a country in Southeast and Central Europe that existed from 1918 until 1941. From 1918 to 1929, it was officially called the Kingdom of Serbs, Croats, and Slovenes, but the term "Yugoslavia" () has been its colloq ...
, that was active during the
interwar period
In the history of the 20th century, the interwar period, also known as the interbellum (), lasted from 11 November 1918 to 1 September 1939 (20 years, 9 months, 21 days) – from the end of World War I (WWI) to the beginning of World War II ( ...
.
Background
During
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
, the Serbian Army and the
Chetnik movement were in conflict with the Bulgarian
Internal Macedonian Revolutionary Organization
The Internal Macedonian Revolutionary Organization (IMRO; ; ), was a secret revolutionary society founded in the Ottoman territories in Europe, that operated in the late 19th and early 20th centuries.
Founded in 1893 in Salonica, it initia ...
(IMRO) and Army, which occupied most of Serbia and Macedonia. Bands of Chetniks instigated the
Toplica Uprising, which was quickly crushed by the Bulgarian soldiers and IMRO
chetas. The post-war
Treaty of Neuilly denied Bulgaria what it felt was its share of Macedonia and
Pomoravlje. This was felt by Bulgaria as a heavy blow, since it was now being forced to return to Serbia, Greece and Romania territories it had briefly occupied during the war, and to pay reparations to those countries.
In the newly formed
Kingdom of Serbs, Croats and Slovenes
The Kingdom of Yugoslavia was a country in Southeast and Central Europe that existed from 1918 until 1941. From 1918 to 1929, it was officially called the Kingdom of Serbs, Croats, and Slovenes, but the term "Yugoslavia" () has been its colloq ...
, the Chetnik movement ceased functioning as a
guerrilla
Guerrilla warfare is a form of unconventional warfare in which small groups of irregular military, such as rebels, Partisan (military), partisans, paramilitary personnel or armed civilians, which may include Children in the military, recruite ...
force. However, the IMRO soon began sending armed bands from Bulgaria into the Serbian part of Macedonia to assassinate officials and stir up the spirit of the
Bulgarian part of the local population. In 1921, Bulgarians from the
Western Outlands
The Western (Bulgarian) Outlands () is a term used in Bulgarian to denote several regions located in ex-Yugoslavia, today southeastern Serbia and southeastern North Macedonia, that were traditionally part of Bulgaria and which were predominant ...
created the
Internal Western Outland Revolutionary Organisation (IWORO), which operated in the areas of
Tsaribrod and
Bosilegrad that had been ceded to Yugoslavia.
Founding
The Association against Bulgarian Bandits was set up in 1922 by former
Chetniks
The Chetniks,, ; formally the Chetnik Detachments of the Yugoslav Army, and also the Yugoslav Army in the Homeland; and informally colloquially the Ravna Gora Movement, was a Kingdom of Yugoslavia, Yugoslav royalist and Serbian nationalist m ...
to provide resistance to the IMRO and to IWORO militants in the areas of
Vardar Macedonia
Vardar Macedonia (Macedonian language, Macedonian and ) is a historical term referring to the central part of the broader Macedonian region, roughly corresponding to present-day North Macedonia. The name derives from the Vardar, Vardar River and i ...
and the
Western Outlands
The Western (Bulgarian) Outlands () is a term used in Bulgarian to denote several regions located in ex-Yugoslavia, today southeastern Serbia and southeastern North Macedonia, that were traditionally part of Bulgaria and which were predominant ...
, with
Kosta Pećanac as a leading figure. Between 1923 and 1924, during the apogee of interwar military activity, a total of 53 armed bands operated in the region of Yugoslav (Vardar) Macedonia, according to IMRO statistics. The aggregate membership of the bands was 3245 rebels, and 119 armed clashes and 73 terrorist acts were documented. At the same time, IWORO carried out numerous assaults on the Tzaribrod–Belgrade railway, especially its bridges. Violent Serb counter-measures tended merely to cement the support for IMRO.
Inter-war situation

The IMRO, having been reestablished in 1920, had its own left wing and split over the ultimate goal of its activity. The right faction sought the incorporation of all
Macedonian territory into Bulgaria, while the left faction wished the establishment of a separate Macedonia with the goal of joining a future
Balkan Federation. In December 1921, left-leaning deserters of the IMRO formed the official
Macedonian Federative Organization. Violence between the two groups aggravated the political crisis, and led to the growing public impression that the Bulgarian government was unstable. Meanwhile, the government started a military campaign against the IMRO in the summer of 1921, helped by the Federative Organization as an ally. The Premier,
Aleksandar Stamboliyski, declared the aim of forming a new Balkan Federation of agrarian states.
In March 1923, Stamboliyski signed the
Treaty of Niš with the
Kingdom of Serbs, Croats and Slovenes
The Kingdom of Yugoslavia was a country in Southeast and Central Europe that existed from 1918 until 1941. From 1918 to 1929, it was officially called the Kingdom of Serbs, Croats, and Slovenes, but the term "Yugoslavia" () has been its colloq ...
and undertook to suppress the operations conducted from Bulgarian territory by the IMRO and the IWORO. Responding to this, the IMRO, aided by radical officers, carried out a
coup d'état
A coup d'état (; ; ), or simply a coup
, is typically an illegal and overt attempt by a military organization or other government elites to unseat an incumbent leadership. A self-coup is said to take place when a leader, having come to powe ...
. The fall of Stamboliyski's pro-Yugoslav government was seen as a great success for IMRO. Subsequently, some of the
federalists who had fled from Bulgaria placed themselves in
Serbia
, image_flag = Flag of Serbia.svg
, national_motto =
, image_coat = Coat of arms of Serbia.svg
, national_anthem = ()
, image_map =
, map_caption = Location of Serbia (gree ...
n service, joining the Association against Bulgarian Bandits and fighting against the IMRO. Serbian Prime Minister
Ljubomir Davidović openly declared his opposition to this, but
Žika Lazić, who coordinated the work of the guerrillas, claimed not to have found a better mechanism for the mutual annihilation of current and former Bulgarian
Komitadjis.
Aftermath
As a result of these events, the IMRO, aided unofficially by the new government, came to operate as a "state within the state" in Bulgaria, using it as its hub for swift raids against Yugoslavia. In consequence, the Yugoslav-Bulgarian frontier had at the end of the 1920s been turned into the most fortified one in Europe.
[Войната се връща, Анри Пози (Второ издание, Планета-7, София, 1992) стр. 33.] The Serbian actions managed to significantly reduce attacks by the IMRO. In the wake of the May 1934 coup, constant fratricidal killings and assassinations carried out by the IMRO abroad led a group of Bulgarian military officers to take control and break the power of the organization, which had come to be regarded as a criminal grouping inside Bulgaria and a band of assassins outside it. Following this, the Association against Bulgarian Bandits was gradually dissolved.
References
{{reflist
1923 establishments in Yugoslavia
Anti-Bulgarian sentiment
Bulgaria–Serbia relations
Bulgaria–Yugoslavia relations
Chetniks
Kingdom of Yugoslavia
Modern history of Macedonia (region)
Organizations established in 1923
Paramilitary organizations based in Serbia
Serbian guerrillas
Serbian nationalism
Serbian nationalism in North Macedonia
Štip
Vardar Macedonia (1918–1941)