Introduction

The Nagorno-Karabakh region, known to Armenians as Artsakh and recognized internationally as part of Azerbaijan, is a landlocked territory in the South Caucasus that has remained at the heart of one of the world’s most intractable ethno-territorial conflicts. Its mountainous highlands, ancient heritage sites, and strategic location have made it a symbol of national identity for both Armenians and Azerbaijanis. Yet for decades, the region has been caught in a “frozen conflict” that periodically erupts into full-scale warfare, with profound consequences for regional stability, local populations, and international diplomacy. This article explores the geography, history, cultural legacy, and contemporary dynamics of Nagorno-Karabakh, providing a comprehensive overview of a region where highlands and heritage are inextricably tied to unresolved conflict.

Geography and Strategic Landscape

Nagorno-Karabakh is defined by its rugged terrain. The name itself derives from the Russian and Turkish words for “mountainous” (Nagorno) and “black garden” (Karabakh), reflecting the region’s mix of forested slopes and fertile valleys. The landscape comprises the Lesser Caucasus mountain range, with peaks reaching over 3,700 meters, interspersed with deep gorges and rivers such as the Tartar and Khachen. This elevation has historically provided natural defensive advantages, shaping the location of settlements, monasteries, and fortresses perched on hilltops and cliffs. The climate is continental, with harsh winters in the highlands and milder conditions in the lowlands, influencing agriculture and seasonal movement of communities.

The region’s geography also gives it strategic importance. Its position along trade routes connecting the Black Sea to the Caspian Sea, and its proximity to energy pipelines such as the Baku-Tbilisi-Ceyhan oil pipeline, mean that control over Nagorno-Karabakh impacts broader economic and geopolitical interests. The terrain complicates military operations and logistics, as seen in the wars that have ravaged the area. Moreover, the region acts as a buffer between Armenia and Azerbaijan, with the Lachin corridor (a mountain pass) serving as the only direct land link between Armenia and the Nagorno-Karabakh enclave—a point of contention and a focus of ceasefire agreements.

Historical Heritage and Cultural Significance

The highlands of Nagorno-Karabakh are dotted with thousands of years of human habitation, leaving a rich tapestry of cultural landmarks. For Armenian identity, the region holds particular significance as the site of some of the oldest Christian monasteries and churches in the world. Azerbaijan also claims deep historical ties to the territory, pointing to medieval Muslim architecture and Turkic cultural influences. This contested heritage has become a central element of the conflict, with both sides accusing the other of cultural vandalism and destruction.

Ancient Monasteries and Churches

Among the most famous sites is the Gandzasar Monastery, built in the 13th century and renowned for its intricate khachkars (cross-stones) and architectural harmony with the surrounding mountains. The monastery is a symbol of the Armenian Apostolic Church’s presence in the region. Another prominent site is the Dadivank Monastery, a complex dating to the 9th century, located in the Kelbajar District. These religious structures were used not only for worship but also as centers of learning and manuscript production. After the 2020 war, control of some monasteries changed hands, raising concerns about preservation. UNESCO has been involved in monitoring cultural property, but access remains limited.

Fortresses and Settlements

The region’s defensive architecture is equally impressive. Shushi Fortress and the town of Shusha (Shushi) were strategic strongholds throughout history, controlling the approach to the highlands. Shusha itself was a cultural hub, known for its caravanserai, mosques, and Armenian cathedral of Ghazanchetsots, which was damaged during the 2020 conflict. The hilltop ruins of Khachen and Handaberd reflect medieval Armenian principalities, while later Turkic and Persian influences are visible in fortifications like Askeran Fortress. These sites illustrate the layered history of the region, where empires—from the Roman and Persian to the Russian and Ottoman—left their marks. However, much of this heritage is now located in heavily militarized areas, making study and conservation difficult.

The Conflict: Origins and Escalation

The roots of the Nagorno-Karabakh conflict lie in the complex ethnic and political shifts of the early 20th century, exacerbated by Soviet policies and later the collapse of the USSR. Understanding the historical narrative is essential to grasping the current deadlock.

Early 20th Century Disputes

Under the Russian Empire, the region was part of the Elisabethpol Governorate, with a mixed Armenian and Azerbaijani population. After the Russian Revolution in 1917, the short-lived Transcaucasian Federation collapsed into three independent republics: Armenia, Azerbaijan, and Georgia. Nagorno-Karabakh’s status became a flashpoint. In 1920, the Soviet Red Army invaded the Caucasus, and the region was designated an autonomous oblast within Soviet Azerbaijan—a decision that Armenians saw as favoring Baku’s interests. The Nagorno-Karabakh Autonomous Oblast (NKAO) was created in 1923, but its borders were drawn to leave ethnic Armenian villages outside and to include a narrow corridor to Armenia, which became the Lachin corridor. This administrative arrangement sowed the seeds for future conflict as the Armenian population felt marginalized and sought unification with Armenia.

First Nagorno-Karabakh War (1988–1994)

As the Soviet Union weakened, the NKAO’s parliament voted in 1988 to transfer the region to Armenia, triggering pogroms in Sumgait and other cities. Violence escalated into full-scale war after the USSR dissolved in 1991. Armenia and the self-proclaimed Nagorno-Karabakh Republic (backed by Yerevan) fought against Azerbaijani forces. The war resulted in approximately 30,000 deaths and displaced hundreds of thousands from both communities. By the 1994 ceasefire, Armenian forces controlled not only Nagorno-Karabakh proper but also seven surrounding Azerbaijani districts (Agdam, Fuzuli, Jabrayil, Zangilan, Gubadli, Lachin, and Kalbajar), creating a buffer zone. The war ended with a Russian-brokered ceasefire, but no peace treaty was signed, leaving the conflict frozen at huge human cost.

Post-War Ceasefire and Frozen Conflict (1994–2020)

For over two decades, negotiations mediated by the OSCE Minsk Group (co-chaired by Russia, the United States, and France) failed to produce a settlement. The so-called “frozen conflict” saw occasional skirmishes along the line of contact, including major escalations in 2016 (the Four-Day War) and periodic sniper fire. The status quo allowed the de facto Nagorno-Karabakh Republic to develop its own institutions, while international and humanitarian agencies faced limited access. The region’s economy remained isolated and heavily dependent on Armenia. Meanwhile, Azerbaijan invested oil revenues into modernizing its military, creating an asymmetry that would eventually shatter the ceasefire.

The 2020 Nagorno-Karabakh War and Its Aftermath

On September 27, 2020, a new war erupted, characterized by the widespread use of drones, Turkish military support for Azerbaijan, and heavy civilian casualties. The conflict lasted 44 days and ended with a Russian-brokered ceasefire on November 9, 2020. The terms dramatically changed the territorial situation.

Changes in Territorial Control

Under the ceasefire agreement, Armenia agreed to withdraw from all seven surrounding districts and parts of Nagorno-Karabakh proper, including the strategic city of Shusha. Russia deployed a peacekeeping force of approximately 2,000 troops along the line of contact and in the Lachin corridor to ensure transit. Azerbaijan regained control over territories that had been under Armenian control since 1994. For Armenia, this was a devastating loss of territory and a blow to national pride; for Azerbaijan, it was a military victory that restored territorial integrity as accepted by international law (UN Security Council resolutions had called for withdrawal of Armenian forces). However, the status of Nagorno-Karabakh’s core area remained unresolved, and the peacekeepers were mandated only for a five-year renewable term.

Humanitarian Consequences

The 2020 war caused extensive destruction, including damage to civilian infrastructure, schools, and hospitals. Approximately 90,000 ethnic Armenians fled or were evacuated from areas transferred to Azerbaijan, becoming internally displaced. Meanwhile, Azerbaijanis who had fled in the 1990s began returning to their former homes, many of which were razed or heavily damaged. The conflict also exacerbated existing humanitarian concerns, including missing persons, landmines, and restrictions on freedom of movement. Reports surfaced of cultural destruction, including damage to the Armenian cathedral in Shusha and stories of deliberate targeting of heritage sites. International organizations like the International Committee of the Red Cross (ICRC) and the UN Office for the Coordination of Humanitarian Affairs (OCHA) have worked to address urgent needs, but access remains constrained.

Current Status and Ongoing Tensions

More than three years after the 2020 ceasefire, Nagorno-Karabakh remains a flashpoint. The Russian peacekeeping mission maintains a fragile calm, but incidents occur. In December 2022, the Lachin corridor was blocked by Azerbaijani activists (reportedly with state backing), cutting off the region’s sole road to Armenia, leading to severe shortages of food, medicine, and fuel. The blockade, which lasted for months, heightened fears of a humanitarian crisis and renewed fighting. Armenia and Azerbaijan have engaged in peace talks brokered by the European Union, the United States, and Russia, but no breakthrough on the core status issue has been achieved. In September 2023, Azerbaijan launched a military offensive that quickly overwhelmed Armenian defenses in the region, leading to the surrender of the de facto authorities and the evacuation of virtually all of Nagorno-Karabakh’s ethnic Armenian population—over 100,000 people—to Armenia. Azerbaijan subsequently dissolved the breakaway republic and began integrating the territory. The region is now under full Azerbaijani control, ending the frozen conflict but raising new questions about the rights of the displaced and the future of ethnic Armenians who remain (very few).

Diplomatic Efforts and Negotiations

International mediation has shifted focus from the Minsk Group to direct talks between Armenia and Azerbaijan, facilitated by the EU and the US. Negotiations center on border delimitation, transport corridors, and the rights of minorities. In 2023, Armenia recognized Azerbaijan’s territorial integrity, including Nagorno-Karabakh, signaling a major policy shift. Talks on a comprehensive peace treaty continue, but trust remains low. The EU has deployed a civilian monitoring mission to the Armenia-Azerbaijan border to reduce tensions. However, the exclusion of the Minsk Group format and the lack of a robust international peacekeeping mechanism leave the region in a precarious situation, with the risk of further violence if diplomatic momentum falters.

Military Presence and Security Concerns

Azerbaijan’s military now holds full control over the entire former NKAO. The Russian peacekeepers remain in the area, but their mandate has been questioned, particularly after the 2023 offensive. Armenia has withdrawn its forces and no longer claims a presence in the region. The situation has implications for regional security: the Zangezur corridor proposed by Azerbaijan and Turkey would connect Nakhchivan to mainland Azerbaijan via Armenia—a demand opposed by Armenia. The risk of a new confrontation over this corridor or other border issues remains high.

International Involvement and Geopolitical Dimensions

Nagorno-Karabakh’s conflict is embedded in the broader geopolitical struggle in the South Caucasus, involving major powers and regional players.

Role of Russia, Turkey, and Iran

Russia historically has been the dominant external actor, using its peacekeeping force and close ties with Armenia (via the Collective Security Treaty Organization) to maintain influence. However, the 2020 war and subsequent events have strained that relationship, as Armenia perceived Russia’s peacekeepers as ineffective. Turkey, a strong ally of Azerbaijan, provided direct military support (training, drones, mercenaries) during the 2020 war and continues to back Baku. Turkey and Azerbaijan have deepened cooperation on energy and defense, with Erdogan’s government playing a more assertive role. Iran has a complex position: it shares a border with Armenia and Azerbaijan and fears irredentist claims on its own territory from “Greater Azerbaijan” and also competes for influence with Turkey. Iran has mediated between the two sides but maintains a wary distance from the conflict’s outcome.

Western and UN Positions

The United States and the European Union have engaged primarily through diplomatic channels and humanitarian aid. The US has previously co-chaired the OSCE Minsk Group and provided development assistance to the region. The EU has appointed a special representative and funded conflict resolution initiatives. However, Western influence is limited relative to Russia and Turkey. The United Nations has consistently affirmed Azerbaijan’s territorial integrity in multiple resolutions (notably UN Security Council Resolutions 822, 853, 874, 884 from 1993), but these were never enforced. The UN agencies provide humanitarian support but lack leverage over the political process. The International Court of Justice has heard cases brought by both countries alleging violations of the International Convention on the Elimination of All Forms of Racial Discrimination (ICERD), with provisional measures issued in late 2021 and 2023.

Cultural Preservation Amid Conflict

The cultural heritage of Nagorno-Karabakh has suffered throughout decades of conflict. During the first war, Azerbaijani cultural sites in Armenian-controlled areas were neglected or destroyed; after 2020, Armenian cultural sites under Azerbaijani control have faced similar risks. Reports from UNESCO and independent monitors indicate that dozens of churches, monasteries, cemeteries, and mosques have been damaged, looted, or repurposed. For example, after the 2020 war, images emerged of the Shushi mosque being repaired by Azerbaijan, while the Ghazanchetsots Cathedral showed signs of shelling. Both sides use heritage claims to bolster their national narratives. International efforts, such as the UNESCO World Heritage Centre’s inclusion of the region in its monitoring list, have had limited practical effect. The preservation of this shared but contested heritage remains a significant challenge for any future post-conflict reconstruction. Additionally, the massive displacement of 2023 has left many villages empty, and absence of human presence accelerates decay of buildings and landscapes.

Future Prospects for Peace

The Nagorno-Karabakh conflict as a “frozen conflict” appears to have thawed decisively with Azerbaijan’s 2023 military takeover. The core territorial dispute—who controls the land—has been resolved by force. However, the human and political dimensions remain unresolved. The ethnic Armenian population that once lived there is now almost entirely in Armenia, creating a large refugee crisis and a potential source of revanchism. Azerbaijan faces the challenge of rebuilding and repopulating areas devastated by war and decades of neglect, while managing the legacy of conflict with local communities (if any return). Armenia grapples with internal political upheaval and the need to chart a new path without leverage over Karabakh. Peace negotiations now focus on border demarcation, transport routes, and normalization of relations between Armenia and Azerbaijan. A comprehensive peace treaty could open economic opportunities, including the “Zangezur corridor” connecting Azerbaijan to Nakhchivan and Turkey via southern Armenia, which would drastically change regional trade patterns. However, without addressing the rights and grievances of the displaced populations and ensuring cultural preservation, any peace will remain fragile.

The final status of the Russian peacekeeping force is uncertain beyond 2025. Azerbaijan has indicated it does not see a need for peacekeepers inside its sovereign territory. Armenia is seeking alternative security guarantees, including from the EU and NATO. Given the shifting geopolitical landscape—with the Ukraine war limiting Russia’s capacity, and the West eager to counter influence in the South Caucasus—the region is at a crossroads. The future of Nagorno-Karabakh, as a concept, is now largely symbolic, yet its legacy will shape the politics of the Caucasus for decades to come.

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