Historically, the
Zangezur region was part of the
Syunik province of Armenian kingdoms and polities. In 1748, Zangezur was joined to the
Karabakh Khanate which stretched into the lowland steppes of
Karabakh and before that, it was part of numerous
Turkic states and polities. Following the Russian Empire's annexation of the region from
Qajar Iran, the Karabakh Khanate was dissolved and divided into
uezds—
Elizavetpol,
Ordubad, and Shusha. Between the 1770s and 1813, the Zangezur
uezd was mostly a part of the Shemakha Governorate (later known as the
Baku Governorate). With the establishment of the
Elizavetpol Governorate on 25 February 1868, the
Zangezur uezd was also formed. In the central subdistricts (
Goris,
Kapan,
Meghri, and
Sisian),
Armenians formed the majority of the population, whereas Tatars and
Kurds were mainly concentrated in the "peripheral southeastern slopes". Without the predominantly Muslim-inhabited southeastern slopes, Zangezur consisted of 88,000 Armenians, 2,000 other Christians, and 46,000 Muslims. It was with this ethnography that it was possible for
fedayi Andranik Ozanian to establish control over the west of the
uezd (modern-day Syunik). In addition to 30–40 thousand refugees from the Mush and Baghesh (present-day
Muş and
Bitlis, respectively) regions of Turkey, Andranik also brought with him 3–5 or 12 thousand fighters. By early 1918, Andranik had overseen the destruction of 18 Muslim villages in Zangezur and killed 500 women. As a result of his activities of "transforming Zangezur into a solidly Armenian land", Shortly after, the British pressured the Armenians of Zangezur to recognise Azerbaijani authority, eventually leading to General
Digby Shuttleworth in late April unsuccessfully threatening the Armenians with force. On the other hand, Nagorno-Karabakh was successfully subjugated to Azerbaijani authority on 22 August 1919, owing to Azerbaijani threats of massacre as demonstrated by the
Khaibalikend massacre. Without Andranik's forces, Zangezur demanded support from Armenia to protect itself from Azerbaijan. The Armenian government answered their request by dispatching Colonel
Arsen Shahmazyan with the instructions to secretly incorporate the region into the Republic of Armenia. Eventually, the Armenian defiance in Zangezur led to the British command permitting Zangezur to remain within Armenian jurisdiction, contrary to their initial stance—in what Major General
G.N. Cory described as a "major concession". The destruction of Muslim settlements in Zangezur and the Armenian restriction on 10,000 Muslim shepherds taking 150,000 of their livestock into the highlands served as the
casus belli for Azerbaijan to prepare to takeover the district. Following the British withdrawal from the South Caucasus, the Azerbaijani army and Kurdish local forces led by Sultan bey Sultanov and some Turkish officers launched a full-scale invasion into Zangezur on 4 November, confident in their ability owing to their victories over the
Mughan Soviet Republic and subjugating the
Karabakh Council. Despite meeting success on all fronts and routing the local Armenians, the Azerbaijanis suffered heavy casualties and withdrew on 7 November. With combined British and American pressure, on 23 November in Tiflis (present-day
Tbilisi) prime ministers
Alexander Khatisian and
Nasib bey Yusifbeyli signed a peace agreement and ineffectually committed to revolve their territorial disputes exclusively by peaceful means. Despite the signing of the peace agreement, fighting continued: Halil Bey from the direction of Nakhichevan unsuccessfully attacked Keshishkend (present-day
Yeghegnadzor) in Daralayaz, whilst forces under
Garegin Nzhdeh attacked the remaining Muslim villages in the valley between
Tatev and
Kapan—On 7 December 1919, the last Muslim village, Adjibadj (located near
Geghi) was burned and its inhabitants fled to Nakhichevan. On 24 January 1920, British Chief Commissioner of Transcaucasia
Oliver Wardrop notified
Prime Minister Khatisian that he had evidence that the Armenian army was involved in attacks on 24 Muslim settlements in Zangezur. To placate Wardrop's complaints, Armenia recalled Colonel Shahmazian from Zangezur, replacing him with General H. Kazarov with instructions to investigate the Azerbaijani allegations of massacres against the Muslim population.
1920 As the Armenian–Azerbaijani peace talks hosted in Baku on 14–21 December 1919 did not lead to any progress on a settlement, Azerbaijan again moved its troops towards Zangezur. Furthermore, as the Paris Peace Conference was inconclusive on the issue of the Karabakh, Khosrov Bey Sultanov issued an ultimatum to the Karabakh Council to permanently accept incorporation into Azerbaijan. With the Karabakh ultimatum looming and the Azerbaijani army positioned to attack Zangezur again, the Armenian government dispatched
Arsen Mikayelyan to Nagorno-Karabakh to take measures to unite the region to Armenia. The abortive uprising beginning on 23 March 1920 though resulting in the massacre and expulsion of Shusha's Armenian population was successful in ousting the Azerbaijani administration from the rest of Nagorno-Karabakh. However, as a direct result of the
Sovietization of Azerbaijan, Armenian forces in late May were forced out from Nagorno-Karabakh by the
11th Army of
Soviet Russia. In July 1920, a Soviet ultimatum was issued to Armenia to leave the south of Zangezur and Nakhichevan so that they could join with Turkey. Without awaiting an answer, the Red Army captured the city of Nakhichevan (present-day
Nakhchivan) on 17 July, however, they were unsuccessful in seizing control of southern Zangezur due to the efforts of Nzhdeh. After the completion of the establishment of Soviet rule in Armenia and Azerbaijan, Zangezur was initially to join
Soviet Azerbaijan as it was considered practically necessary for connecting the
protectorate of Nakhichevan to mainland Azerbaijan. However, Zangezur was officially "transferred" to Armenia as a "symbol of socialist friendship" in 1921, in accordance with
Garegin Nzhdeh's demands to the Soviet government during the
February Uprising. During the Caucasian Bureau of the
Central Committee of the
Russian Communist Party's arbitration of borders in July 1921, the eastern Kurdish and Azerbaijani populated areas of the Zangezur
uezd were reattached to Azerbaijan, forming the
Lachin,
Zangilan,
Gubadly districts and a small southwestern part of the
Shusha District of the
Nagorno-Karabakh Autonomous Oblast. In Armenia, the districts of Goris, Kapan, Meghri, and
Sisian were formed in place of the abolished
uezd. == Administrative divisions ==