In the aftermath of the Second Nagorno-Karabakh War, peacekeeping operations were initiated by Russia in the Nagorno-Karabakh region to monitor the ceasefire between the Armenian and Azerbaijani forces. Separate from the Russian operation, Turkey also has personnel working in a joint Russian–Turkish monitoring centre.

After the war, in accordance to the ceasefire agreement signed on 10 November 2020, Russia sent a peacekeeping contingent of 1,960 servicemen, provided by the 15th Separate Motor Rifle Brigade of the Russian Ground Forces, and led by Lieutenant General Rustam Muradov, to the region. The peacekeeping forces, headquartered near Stepanakert, established observation posts along the contact line in Nagorno-Karabakh and along the Lachin corridor. The Russian peacekeeping forces started to assist the International Committee of the Red Cross on finding and exchanging the bodies of the fallen soldiers from both sides in November, and the Russian peacekeepers later started demining operations in the region.

On 11 November, a memorandum of understanding was signed between Russia and Turkey to create a Russian-Turkish Joint Monitoring Centre (RTJMC) near Marzili in Aghdam, Azerbaijan. In December, Turkey sent 136 sappers to Azerbaijan to assist in the demining of the region, as well as to train mine clearance personnel of Azerbaijan. It also sent 35 of its officers to Azerbaijan. The RTJMC was opened on 30 January 2021, with a total of 60 servicemen from both sides monitoring the ceasefire using unmanned aerial vehicles. The Turkish staff of the RTJMC is headed by Major General Abdullah Katırcı, and the Russian staff is headed by Major General Victor Fedorenko, while the centre itself is guarded by the Azerbaijani servicemen.

The first major breach of the ceasefire that was confirmed by the Russian peacekeeping forces in the region occurred on 11 December, near Hadrut. Chaylaggala (Khtsaberd), Hin Tagher (Kohne Taghlar) villages, as well as the Katarovank monastery had become an Artsakh holdout in the Hadrut Province during the war. Clashes erupted around the Armenian holdout pocket despite the ceasefire agreement, and it has been reported that the Azerbaijani forces seized control of Hin Tagher on 12 December, with some clashes continuing in the area. Later, Artsakh authorities confirmed that six of their servicemen had been injured. Both sides accused each other of reigniting the conflict. The Russian peacekeeping forces requested both sides to respect the ceasefire. On 13 December, the Russian peacekeeping contingent took control of Hin Tagher. However, the next day, the Russian Ministry of Defence released a map showing both villages outside of the borders of the peacekeeping mission, and both came under Azerbaijan's control.

The blockade of Nagorno-Karabakh drew international criticism and raised doubts in the ability and willingness of the peacekeepers to fulfil their mission to ensure freedom and security of movement along the Lachin corridor in line with the trilateral ceasefire agreement of 9 November 2020.

In September 2023 Russian peacekeepers did not intervene as Azerbaijan launched a lightning offensive to seize the region, which resulted in mass exodus and near-complete emptying of its Armenian population. In April 2024, Russian peacekeepers began to withdraw from Nagorno-Karabakh, leaving the region under the full control of Azerbaijan.

Background

On 27 September 2020, clashes broke out in the disputed Nagorno-Karabakh region, which is de facto controlled by the self-proclaimed Republic of Artsakh, and de jure part of Azerbaijan. Azerbaijani forces first advanced in Fuzuli and Jabrayil districts, taking their respective administrative centres. From there, they proceeded towards Hadrut. Azerbaijani troops began to advance more intensively after the fall of Hadrut around 15 October, and Armenians began to retreat, with Azerbaijanis then taking control of Zangilan and Qubadli. Launching an offensive for Lachin, they also penetrated into Shusha District through its forests and mountain passes.

Following the capture of Shusha, the second-largest settlement in Nagorno-Karabakh, a ceasefire agreement was signed between the President of Azerbaijan, Ilham Aliyev, the Prime Minister of Armenia, Nikol Pashinyan, and the President of Russia, Vladimir Putin, ending all hostilities in the area from 00:00, 10 November 2020 Moscow Time. Under the agreement, the warring sides kept control of their currently held areas within Nagorno-Karabakh, while Armenia will return the surrounding territories it occupied in 1994 to Azerbaijan. Azerbaijan will also gain land access to its Nakhchivan exclave bordering Turkey and Iran. Approximately 2,000 Russian soldiers were deployed as peacekeeping forces along the Lachin corridor between Armenia and Nagorno-Karabakh for a mandate of at least five years.

Russian peacekeeping contingent

The Russian peacekeeping forces, provided by the 15th Separate Motor Rifle Brigade of the Russian Ground Forces according to Russian state outlet TASS, consisting of 1,960 servicemen, and led by Lieutenant General Rustam Muradov, were dispatched to the region as part of the ceasefire agreement to monitor compliance by Armenia and Azerbaijan with its terms. The peacekeeping forces, headquartered near Stepanakert, established observation posts along the contact line in Nagorno-Karabakh and along the Lachin corridor according to Russian state outlet TASS. Reuters reported that the peacekeeping forces were accompanied with armoured personnel carriers, tanks and multiple rocket launchers. On 17 November, the Russian peacekeeping forces started to assist the International Committee of the Red Cross on finding and exchanging the bodies of the fallen soldiers from both sides, and on 23 November, started demining operations in the region.

By 22 November 2020, 25,000 displaced Armenians had returned to the region. On 10 December, the Mayor of Stepanakert stated that about 18,000 displaced Armenians had returned to the city. On 11 December, a car belonging to an Armenian civilian collided with a truck of the Russian peacekeeping forces in Stepanakert–Askeran highway.

The contingent is currently led by Major General Andrei Volkov.

Russian-Turkish Joint Monitoring Centre

On 11 November, the Russian and Turkish defence ministers signed a memorandum of understanding to create a Russian-Turkish Joint Monitoring Centre (RTJMC) in Azerbaijan, although the Russian officials stated that Turkey's involvement in the peacekeeping operations will not affect Nagorno-Karabakh. On 16 November, the Turkish government submitted a motion to the Grand National Assembly on deploying peacekeepers in Azerbaijan. The Turkish parliament approved the motion the following day, giving the Turkish Armed Forces a one-year mandate on sending troops to Azerbaijan. On 1 December, the Turkish sappers arrived in Azerbaijan and started demining the Azerbaijani-controlled territories in the region, alongside the Azerbaijani sappers, and the following day, the Ministry of National Defence of Turkey, Hulusi Akar, stated that the Turkish government had agreed with Russia, and that the RTJMC was under construction. According to the Minister of Foreign Affairs of Russia, Sergey Lavrov, the RTJMC will operate remotely, using drones and other technical means to monitor possible violations. On 16 December, 136 members of the Turkish Land Forces Special Mine Search Clearance Team were sent to Azerbaijan to assist in the demining of the region, as well as to train mine clearance personnel of Azerbaijan. On 29 December, Turkey sent 35 of its officers to Azerbaijan.

The Turkish officers arrived in Azerbaijan on 30 January 2021, and the RTJMC was opened near Marzili in Aghdam on the same day according to Russian state media TASS. The Azerbaijani Minister of Defence, Zakir Hasanov, the Deputy Turkish Minister of National Defence, Yunus Emre Karaosmanoğlu, the Deputy Russian Minister of Defence, Alexander Fomin, represented their countries at the opening. They first cut the red ribbon in front of the RTJMC, followed by the national anthems of Azerbaijan, Turkey, and Russia respectively. The opening ceremony ended with a tree planting event by Azerbaijani, Turkish and Russian officials.

The total area of RTJMC is about 4 hectares. There are 65 modular service, administrative and living rooms in the area. In addition, there are separate and general monitoring centres, a briefing room, a canteen for a hundred people, a medical centre, a laundry, a hairdresser, a tailor and a shop for the use of both parties. There is a water station, a transformer, a generator, a parking lot, two outdoor sports camps, as well as two indoor gyms, food and cold storage in the area. The whole area was fenced along the perimeter, four observation towers were installed, and round-the-clock security was organized. Right after the opening ceremony, the Russian and Turkish servicemen started to work on a parity basis. The RTJMC is guarded by Azerbaijani servicemen. Total of 60 servicemen from Turkey and Russia serve at the RTJMC. The RTJMC monitors the ceasefire in Nagorno-Karabakh using unmanned aerial vehicles. When the monitoring center was opened, it was initially announced that a general and 38 servicemen would serve on the Turkish side. The Turkish staff of the RTJMC is headed by Major General Abdullah Katırcı, and the Russian staff is headed by Major General Victor Fedorenko.

On 26 April 2024, the RTJMC was closed after a ceremony, and its mission was declared completed.

Ceasefire violations 2020

The villages of Chaylaggala (Khtsaberd) and Hin Tagher (Kohne Taghlar) as well as the Katarovank monastery, became an Artsakh holdout in the Hadrut Province during the war.

In mid-December, Azerbaijani media reported that armed Armenian groups were attacking Azercell employees, who were installing equipment, and on 11 December, that an Azerbaijan soldier was injured as a result of an attack from another group of armed Armenians. This was confirmed by the Azerbaijani military authorities later on, who stated that three Azerbaijani servicemen were killed and two were wounded as a result of a "sudden attack by the Armenians" in Sor, Khojavend District on 26 November. Also, according to the ministry, on 8 December, one Azerbaijani serviceman was killed and an Azercell employee was seriously injured during the installation of communication facilities and transmission equipment near Hadrut. Some Azerbaijani sources have claimed that Armenian servicemen have remained in the forests around Hadrut after the battle over the town, and stated that these Armenian pockets were related to the clashes. Retired Azerbaijani colonel Shair Ramaldanov had stated that there could be "provocative" and "guerrilla-type" actions from the Armenian forces in the region. However, according to Ramaldanov, the Azerbaijani military authorities were taking "security measures" against them. The following day, the President of Azerbaijan, Ilham Aliyev reiterated the Azerbaijani media reports, calling the incident an "act of terrorism" and threatening to crush Armenian forces with an "iron fist". Later on, the Azerbaijani military authorities accused the Armenian forces of violating the ceasefire and stated that its forces restored the ceasefire.