The Chetniks, formally the Chetnik Detachments of the Yugoslav Army, and also the Yugoslav Army in the Homeland and the Ravna Gora Movement, was a Yugoslav royalist and Serbian nationalist movement and guerrilla force in Axis-occupied Yugoslavia. Although it was not a homogeneous movement, it was led by Draža Mihailović. While it was anti-Axis in its long-term goals and engaged in marginal resistance activities for limited periods, it also engaged in tactical or selective collaboration with Axis forces for almost all of the war. The Chetnik movement adopted a policy of collaboration with regard to the Axis, and engaged in cooperation to one degree or another by both establishing a modus vivendi and operating as "legalised" auxiliary forces under Axis control. Over a period of time, and in different parts of the country, the movement was progressively drawn into collaboration agreements: first with the puppet Government of National Salvation in the German-occupied territory of Serbia, then with the Italians in occupied Dalmatia and Montenegro, with some of the Ustaše forces in northern Bosnia, and, after the Italian capitulation in September 1943, with the Germans directly.
Case White, also known as the Fourth Enemy Offensive, was a combined Axis strategic offensive launched against the Yugoslav Partisans throughout occupied Yugoslavia during World War II. It was one of the most significant confrontations of World War II in Yugoslavia. The offensive took place in early 1943, between 20 January and mid-to-late March. The Axis operation prompted the Partisan Supreme Command to enact its plans to drive toward eastern Herzegovina, Sandžak and Montenegro.
The Yugoslav Partisans, or the National Liberation Army, officially the National Liberation Army and Partisan Detachments of Yugoslavia, was the communist-led anti-fascist resistance to the Axis powers in occupied Yugoslavia during World War II. Led by Josip Broz Tito, the Partisans are considered to be Europe's most effective anti-Axis resistance movement during World War II.
Case Black, also known as the Fifth Enemy Offensive in Yugoslav historiography and often identified with its final phase, the Battle of the Sutjeska was a joint attack by the Axis taking place from 15 May to 16 June 1943, which aimed to destroy the main Yugoslav Partisan force, near the Sutjeska river in south-eastern Bosnia. The failure of the offensive marked a turning point for Yugoslavia during World War II. It was also the last major German-Italian joint operation against the partisans.
Operation Southeast Croatia was a large-scale German-led counter-insurgency operation conducted in the southeastern parts of the Independent State of Croatia during World War II. It was the first of two German-led operations targeting mainly Yugoslav Partisans in eastern Bosnia between 15 January and 4 February 1942. Several days after the conclusion of Operation Southeast Croatia, a follow-up operation known as Operation Ozren was carried out between the Bosna and Spreča rivers. Both operations also involved Croatian Home Guard and Italian troops and are associated with what is known as the Second Enemy Offensive in post-war Yugoslav historiography. The Second Enemy Offensive forms part of the Seven Enemy Offensives framework in Yugoslav historiography.
Operation Trio was the first large-scale joint German-Italian counter-insurgency operation of World War II conducted in the Independent State of Croatia (NDH), which included modern-day Bosnia and Herzegovina. It was carried out in two phases within eastern Bosnia from 20 April to 13 May 1942, with Ustaše militia and Croatian Home Guard forces taking part on the Axis side. The aim of the operation was to target all insurgents between Sarajevo and the Drina river in eastern Bosnia. These included the communist-led Yugoslav Partisans and Serb nationalist Chetniks. Differentiating between the rank and file of the two insurgent factions was difficult, as even the communist-led insurgent groups consisted mainly of Serb peasants who had little understanding of the political aims of their leaders.
The Seven Enemy Offensives is a group name used in Yugoslav historiography to refer to seven major Axis military operations undertaken during World War II in Yugoslavia against the Yugoslav Partisans.
World War II in the Kingdom of Yugoslavia began on 6 April 1941, when the country was invaded and swiftly conquered by Axis forces and partitioned among Germany, Italy, Hungary, Bulgaria and their client regimes. Shortly after Germany attacked the USSR on 22 June 1941, the communist-led republican Yugoslav Partisans, on orders from Moscow, launched a guerrilla liberation war fighting against the Axis forces and their locally established puppet regimes, including the Axis-allied Independent State of Croatia (NDH) and the Government of National Salvation in the German-occupied territory of Serbia. This was dubbed the National Liberation War and Socialist Revolution in post-war Yugoslav communist historiography. Simultaneously, a multi-side civil war was waged between the Yugoslav communist Partisans, the Serbian royalist Chetniks, the Axis-allied Croatian Ustaše and Home Guard, Serbian Volunteer Corps and State Guard, Slovene Home Guard, as well as Nazi-allied Russian Protective Corps troops.
Jezdimir Dangić was a Yugoslav and Bosnian Serb Chetnik commander during World War II. He was born in the town of Bratunac in the Austro-Hungarian occupied Bosnia Vilayet of the Ottoman Empire. Imprisoned during World War I for his membership of the revolutionary movement Young Bosnia, he subsequently completed a law degree and became an officer in the gendarmerie of the Kingdom of Serbs, Croats and Slovenes at the beginning of 1928. In 1929, the country changed its name to the Kingdom of Yugoslavia. In 1940, Dangić was appointed to lead the court gendarmerie detachment stationed at the royal palace in the capital, Belgrade. During the Axis invasion of Yugoslavia in 1941, Dangić commanded the gendarmerie unit that escorted King Peter II to Montenegro as he fled the country. In August of that year, the leader of the Chetnik movement, Colonel Draža Mihailović, appointed Dangić as the commander of the Chetnik forces in eastern Bosnia. Here, Dangić and his men launched several attacks against the forces of the Independent State of Croatia. Soon after his appointment, Dangić's Chetniks captured the town of Srebrenica from the occupiers. Afterwards, they became largely inactive in fighting the Germans, choosing instead to avoid confrontation. In December, Chetniks under Dangić's command massacred hundreds of Bosnian Muslims in the town of Goražde. In the same month, his Chetniks captured five nuns and took them with them through Romanija to Goražde, where they later committed suicide to avoid being raped.
Dobroslav Jevđević was a Bosnian Serb politician and self-appointed Chetnik commander in the Herzegovina region of the Axis-occupied Kingdom of Yugoslavia during World War II. He was a member of the interwar Chetnik Association and the Organisation of Yugoslav Nationalists, a Yugoslav National Party member of the National Assembly, and a leader of the opposition to King Alexander between 1929 and 1934. The following year, he became the propaganda chief for the Yugoslav government.
Operation Alfa was an offensive carried out in early October 1942 by the military forces of Italy and the Axis puppet state, the Independent State of Croatia (NDH), supported by Chetnik forces under the control of vojvoda Ilija Trifunović-Birčanin. The offensive was directed against the communist-led Partisans in the Prozor region, then a part of the NDH. The operation was militarily inconclusive, and in the aftermath, Chetnik forces conducted mass killings of civilians in the area.
Pavle Đurišić was a Montenegrin Serb regular officer of the Royal Yugoslav Army who became a Chetnik commander (vojvoda) and led a significant proportion of the Chetniks in Montenegro during World War II. He distinguished himself and became one of the main commanders during the popular uprising against the Italians in Montenegro in July 1941, but later collaborated with the Italians in actions against the Communist-led Yugoslav Partisans. In 1943, his troops carried out several massacres against the Muslim population of Bosnia, Herzegovina and the Sandžak in which an estimated 10,000 people were killed between January and March, including thousands of women, children and the elderly. He then led his troops during their participation in the anti-Partisan Case White offensive alongside Italian forces. Đurišić was captured by the Germans in May 1943, escaped, and was recaptured.
Ilija Trifunović-Birčanin was a Serbian Chetnik military commander. He took part in the Balkan Wars and World War I and afterwards served as the president of the Association of Serb Chetniks for Freedom and the Fatherland in the Kingdom of Yugoslavia. In the spring of 1942, he was appointed by Mihailović as the commander of Chetniks in Dalmatia, Herzegovina, western Bosnia and southwestern Croatia. He died in Split on 3 February 1943, having suffered from poor health for a considerable period of time.
Petar Baćović was a Bosnian Serb Chetnik commander within occupied Yugoslavia during World War II. From the summer of 1941 until April 1942, he headed the cabinet of the Ministry of Internal Affairs for Milan Nedić's puppet Government of National Salvation in the German-occupied territory of Serbia. In May and June 1942, Baćović participated in the joint Italian-Chetnik offensive against the Yugoslav Partisans in Montenegro In July 1942, Baćović was appointed by the Chetnik leader Draža Mihailović and his Supreme Command as the commander of the Chetnik units in the regions of eastern Bosnia and Herzegovina within the Axis puppet state, the Independent State of Croatia. In this role, Baćović continued collaborating with the Italians against the Yugoslav Partisans, with his Chetniks formally recognised as Italian auxiliaries from mid-1942.
Lieutenant Colonel Zaharije Ostojić was a Montenegrin Serb and Yugoslav military officer who served as the chief of the operational, organisational and intelligence branches of the Chetnik Supreme Command led by Draža Mihailović in Yugoslavia during World War II. He was a major in the Royal Yugoslav Army Air Force prior to the Axis invasion of Yugoslavia, and was involved in the coup that deposed Prince Paul of Yugoslavia on 27 March 1941. After the coup, he escorted Prince Paul to exile in Greece, and was in Cairo during the invasion in April. In September 1941, he was landed on the coast of the Italian governorate of Montenegro along with the British Special Operations Executive officer Captain Bill Hudson and two companions. He escorted Hudson to the German-occupied territory of Serbia and introduced him to the Yugoslav Partisan leader Josip Broz Tito at Užice, then accompanied Hudson to Ravna Gora to meet Mihailović. Ostojić soon became Mihailović's chief of staff, and after the German attempt to capture the Chetnik leader during Operation Mihailovic in December 1941, brought the Chetnik Supreme Command staff to Montenegro where they were re-united with Mihailović in June 1942. During the remainder of 1942, Ostojić launched a counter-attack against Ustaše troops of the Independent State of Croatia returning to the eastern Bosnian town of Foča where they were expected to continue their genocidal anti-Serb policies. As many as 2,000 local Muslims were subsequently killed in the town by forces under Ostojić's command. Ostojić later oversaw large-scale massacres of civilians and burning of Muslim villages in the border region between Montenegro and the Sandžak.
The 1st Proletarian Brigade, later the 1st Proletarian Division, was the first brigade-size formation raised by the Yugoslav Partisans during World War II. The unit was one of the elite formations of the National Liberation Army of Yugoslavia. Its combat value was respected by the enemy. Artur Phleps, V SS Mountain Corps commander, in his war journal in 1944 assessed as a serious opponent, very well managed and well trained, who fights like a regular troop.
Ismet Popovac was a Bosnian Muslim lawyer and physician who led a Muslim Chetnik militia known as the Muslim People's Military Organization (MNVO) in Bosnia and Herzegovina during World War II. He was active in pre-war Yugoslav politics, becoming a member of the Serbian Muslim cultural organization Gajret and serving as the mayor of Konjic, a town in northern Herzegovina. He is also said to have been candidate for Vladko Maček's electoral list, but was left without a job in the Yugoslav state government after the creation of the Banovina of Croatia in August 1939.
The Uprising in Montenegro, commonly known as the 13 July Uprising was an uprising against Italian occupation forces in Montenegro. Initiated by the Communist Party of Yugoslavia on 13 July 1941, it was suppressed within six weeks, but continued at a much lower intensity until Battle of Pljevlja on 1 December 1941. The insurgents were led by a combination of communists and former Royal Yugoslav Army officers from Montenegro. Some of the officers had recently been released from prisoner-of-war camps following their capture during the invasion of Yugoslavia. The communists managed the organisation and provided political commissars, while the insurgent military forces were led by former officers. The entire nation rejected the privileged position offered by its occupiers, rejected the capitulation in order to fight for Yugoslavia, together with "Russia".
The Partisan Long March was the redeployment of Josip Broz Tito's Partisan Supreme Headquarters and the major fighting elements of the Yugoslav Partisans across the Independent State of Croatia, from south-eastern to north-western Bosnia that commenced in late June 1942. The march followed the first large-scale joint German-Italian counter-insurgency operation in the NDH, Operation Trio, and the combined Italian-Montenegrin Chetnik offensive in Montenegro and eastern Herzegovina.
The Chetniks, a Yugoslav royalist and Serbian nationalist movement and guerrilla force, committed numerous war crimes during the Second World War, primarily directed against the non-Serb population of the Kingdom of Yugoslavia, mainly Muslims and Croats, and against Communist-led Yugoslav Partisans and their supporters. Most historians who have considered the question regard the Chetnik crimes against Muslims and Croats during this period as constituting genocide.
Partisans 
Zaharije Ostojić 
