By Sergey Sukhankin

Weakened by economic sanctions and bearing significant consequences for their geopolitical endeavors, Iran and Russia have solidified their post-2022 partnership, elevating it to the status of a comprehensive strategic partnership. The imperative to secure their borders and mitigate the impact of economic sanctions positions the South Caucasus and certain areas of the Caspian Sea as the focal points for deepening cooperation between Tehran and Moscow. Among the smaller regional actors, Azerbaijan is likely a primary beneficiary due to its geographically strategic location. Simultaneously, Russia may be inclined to reclaim some of its regional influence. This prospect is both precarious and potentially destabilizing for the region, as Russia’s historical engagement in the area has been characterized by conflict and disruptive interventions.

BACKGROUND: On January 17, Russia and Iran signed a Treaty on Comprehensive Strategic Partnership, marking the first high-level agreement between the two nations since 2001. Although historically characterized by tension and complexity, bilateral relations have undergone a significant transformation after 2022, in light of Russia’s war of aggression against Ukraine and its resulting international isolation. This period has seen a rapid elevation of Russian-Iranian ties, with some experts even suggesting the formation of an Entente.

The primary impetus behind this strengthening of relations lies in the challenges faced by both states. Politically isolated and subjected to extensive sanctions, Russia has become embroiled in a protracted and costly war. With limited strategic alternatives, Russian leadership has increasingly aligned itself with authoritarian regimes and internationally marginalized states—such as North Korea and Belarus—in an effort to mitigate the effects of its diplomatic and economic isolation and to secure critical military support.

Iran’s situation is arguably even more precarious. In addition to ongoing economic struggles and internal social unrest, Iran experienced a series of significant geopolitical setbacks between 2023 and 2024. At the end of 2024, the Tehran-backed regime of Bashar al-Assad was overthrown by the Turkish-supported opposition. Furthermore, the Israel-Hamas war inflicted severe damage on another of Iran’s key Middle Eastern proxies. These developments have reportedly exacerbated internal divisions within the Iranian political establishment, leading segments of Iran’s military-political elite to adopt a more critical stance toward Moscow.

Despite these disagreements, Russia and Iran remain compelled to act as close partners—if not outright allies—in the domains of defense and security, and perhaps even more so in trade and economic cooperation, as both seek to mitigate the detrimental effects of international sanctions. In this context, collaboration in the Caspian Sea region—particularly in specific areas of the South Caucasus—is expected to play a pivotal role in reinforcing Russo-Iranian ties.

IMPLICATIONS:  The strengthening ties between Russia and Iran are expected to have a significant impact on the geo-economic landscape. As emphasized by Russian President Vladimir Putin, "the essence of the Treaty [between Russia and Iran] is about creating additional conditions [...] for the development of trade and economic ties. We need less bureaucracy and more action." This objective is explicitly outlined in Clause 13 of the Treaty.

At present, economic and trade cooperation between Tehran and Moscow remains limited. In 2024, the reported trade volume between the two countries did not exceed US$ 4 billion. However, this may change in the future, primarily due to Russia’s evolving geopolitical strategy. Given its significantly weakened global position after 2022, Moscow increasingly views Iran as its “window to Asia”—a crucial conduit for circumventing Western-imposed economic sanctions and mitigating their severe economic impact.

In pursuit of this objective, Russo-Iranian cooperation is expected to strengthen in two key domains. First, there will likely be an intensification of trade along the International North-South Transport Corridor (INSTC)—a 7,200-kilometer multimodal freight route encompassing ship, rail, and road networks that connects India, Iran, Azerbaijan, Russia, and Central Asia. The INSTC is increasingly regarded as a viable alternative to traditional maritime trade routes such as the Suez Canal and the Bosphorus Strait.

Within this framework, Azerbaijan stands to be a primary beneficiary, as its strategic geographic position between Iran and Russia will elevate its role as a crucial transportation hub, significantly enhancing its economic and geopolitical importance within the region.

Azerbaijan’s role could be further reinforced if the two countries proceed with the construction of a natural gas pipeline through Azerbaijani territory. Initially agreed upon in 2022 and reaffirmed in late 2024, this project represents a significant expansion of regional energy cooperation. In his most recent statement on January 17, 2025, Russian President Vladimir Putin announced that the proposed pipeline would have a capacity of 55 billion cubic meters (bcm) of natural gas—equivalent to the Nord Stream 1 capacity—and could potentially be extended to Pakistan and even India.

However, some Russian experts question the economic viability of the project, arguing that its feasibility remains uncertain. They suggest that the pipeline could serve as a political instrument for Russia to exert pressure on China, possibly as a means of persuading Beijing to strengthen its energy ties with Moscow. Nevertheless, if both the International North-South Transport Corridor (INSTC) and the gas pipeline are successfully implemented, the South Caucasus—and Azerbaijan in particular—will see a marked increase in geopolitical and economic significance as a critical Eurasian transportation and energy corridor.

Although defense and security are not the primary focus of the Russo-Iranian Treaty, as explicitly stated by Iran’s Ambassador to Russia, Kazem Jalali, certain shifts in the regional security landscape are nonetheless anticipated.

One key factor influencing these dynamics is the aftermath of the Second Nagorno-Karabakh War (2020), resulting in an undisputed victory for Azerbaijan which not only received strong backing from Turkey but also enjoyed tacit Russian support. This outcome significantly weakened Iran’s position in the South Caucasus, while simultaneously bolstering its strategic adversary, Turkey. In addition to consolidating its influence over Azerbaijan, Turkey also strengthened economic, political, and energy ties with both Azerbaijan and Georgia, marking a substantial geopolitical success for Ankara and further diminishing Tehran’s leverage in the region.

However, in the post-2022 period, the geopolitical landscape of the South Caucasus has undergone further transformations, creating additional common ground for Russo-Iranian cooperation. The increasing prominence of Turkey, which directly contradicts the strategic interests of both Russia and Iran, has been a key factor in this shift.

Simultaneously, Russia’s influence over both Armenia and Azerbaijan has weakened. Armenia’s signing of a Charter on Strategic Partnership with the U.S. implies a diversification of its geopolitical partnerships, potentially reducing Moscow’s leverage in Yerevan. 

Moreover, by the end of 2024, anti-Russian sentiment became more pronounced in Abkhazia, a breakaway region that has been heavily reliant on Moscow. These developments have raised alarms among Russian analysts, some of whom have warned of Russia’s "approaching loss of the South Caucasus." While such statements may be premature and alarmist, they nonetheless reflect Moscow’s growing concerns regarding its long-term strategic foothold in the region.

Iran and Russia appear to prioritize a shared geopolitical objective: the de-Westernization of the South Caucasus and the prevention of strengthened U.S. regional influence. This strategic alignment is explicitly reflected in Clause 12 of the Russo-Iranian Treaty, which underscores both parties’ commitment to “strengthening peace and security in the Caspian Sea region, Central Asia, the South Caucasus, and the Middle East [to] prevent destabilizing interference by third parties” in these areas.

In this context, some experts suggest that Iran’s increased diplomatic involvement in regional affairs is likely. One potential avenue for such engagement is the "3+3" format, which includes Armenia, Iran, Russia, Georgia, Turkey, and Azerbaijan. Initially proposed by Ankara and Baku, the framework has since received active support from Moscow as a means to reduce the risk of Western powers gaining a foothold in the South Caucasus. Iran’s participation in this diplomatic initiative could further consolidate its regional influence while aligning with Russia’s broader strategic objectives.

CONCLUSIONS:  The expansion of Russo-Iranian ties is expected to have a notable impact on the South Caucasus and parts of the Caspian Sea region. Azerbaijan's geo-economic and geopolitical significance is likely to increase further, particularly if economic sanctions against Russia remain in place, compelling Moscow to deepen its reliance on alternative regional partners.

Russia, whose regional standing is in decline, might unexpectedly benefit from Iran’s strategic weakening. Given its growing security concerns, Tehran may become more inclined to collaborate with Moscow in the South Caucasus and the Caspian Sea region to safeguard its strategic depth and border security.

From a broader strategic perspective, a greater Russian presence in the region should be viewed as a negative development. Given the region’s complexity and history of conflict, Russia’s potential increased involvement—if it materializes—poses a significant risk. Historically, Moscow’s regional policies have regularly contributed to greater instability rather than fostering long-term security, raising concerns about the potential destabilizing consequences of renewed Russian engagement in the South Caucasus and Caspian Sea region.

AUTHOR BIO: Dr. Sergey Sukhankin is a Senior Fellow at the Jamestown Foundation and the Saratoga Foundation (both Washington DC) and a Fellow at the North American and Arctic Defence and Security Network (Canada). He teaches international business at MacEwan School of Business (Edmonton, Canada). Currently he is a postdoctoral fellow at the Canadian Maritime Security Network (CMSN).

Johan Engvall

January 22, 2025

In a time of geopolitical uncertainty, the South Caucasus and Central Asia have become more interconnected, forming a new Trans-Caspian area. As trade along the Middle Corridor is gaining in importance, the Caspian Sea is becoming a unifier rather than divider of the regions. All countries on the eastern and western side of the Caspian pursue multi-vector foreign policies to avoid overreliance on any single external actor. As the EU is seeking to assert itself geopolitically, it is in its strategic interest to support the evolving Trans-Caspian cooperation. To elevate its engagement with the countries in the South Caucasus and Central Asia, the EU should replace the outdated Eastern Partnership with a new Trans-Caspian Partnership. Such partnership would enhance regional connectivity and cooperation and give regional states greater collective weight in their dealings with different powers.

Read The Convergence of the South Caucasus and Central Asia (PDF)

By Syed Fazl-e-Haider

Pakistan and India, the longstanding rivals in South Asia, have instigated an arms race in the South Caucasus region. This development comes amid a broader arms supply deficit caused by Russia's preoccupation with the ongoing conflict in Ukraine. While India is deepening its military partnership with Armenia, Pakistan is enhancing the defense capabilities of Azerbaijan. Both states are actively seeking to fill the vacuum in arms procurement left by Russia's reduced presence in the region. India has aligned with Armenia, leveraging this partnership to pursue strategic connectivity projects in the South Caucasus. Conversely, Pakistan views Azerbaijan as a strategic ally, with their collaboration deemed essential for countering India in the competition for regional influence.

BCKGROUND: India and Pakistan have shared a contentious relationship since their emergence as independent states in 1947. The two states have engaged in three full-scale wars, primarily over Kashmir, a territory claimed by both. In 1998, Pakistan conducted nuclear tests shortly after India, marking a significant escalation in their rivalry. This ongoing antagonism often manifests in international forums, where the two countries accuse each other of fostering cross-border terrorism. Their rivalry extended to the South Caucasus in 2020, during the 44-day war between Armenia and Azerbaijan over the disputed Nagorno-Karabakh region.

Pakistan supported Azerbaijan during the Second Karabakh War in 2020. However, the close relationship between the two countries predates this conflict, with their cordial ties dating back to Azerbaijan's independence in 1991, following the dissolution of the Soviet Union. Pakistan was among the first nations to recognize Azerbaijan's independence, second only to Türkiye. After Armenian forces attacked Azerbaijan's Nagorno-Karabakh region shortly after its independence, both Türkiye and Pakistan strongly condemned Armenia's actions. Since then, they have consistently supported Azerbaijan’s position on the Nagorno-Karabakh issue in international forums, both politically and diplomatically. Pakistan has gone so far as to refrain from recognizing Armenia, refusing to establish diplomatic relations with the country. In return, Azerbaijan has endorsed Pakistan’s stance on the Kashmir dispute, a position that has antagonized India.

During the Second Karabakh War in 2020, Islamabad was alleged to have sent military advisers to support Azerbaijan. Armenian Prime Minister Nikol Pashinyan even claimed that Pakistani soldiers were actively fighting alongside the Azerbaijani army against Armenia during the 44-day conflict over Nagorno-Karabakh. Pakistan, however, categorically dismissed these allegations, labeling them as "baseless and unwarranted." Ultimately, Azerbaijan emerged victorious in the six-week war over the disputed region.

Türkiye strongly backed Pakistan's position on Kashmir, reciprocating Pakistan’s unequivocal support for Azerbaijan during the Karabakh war. The mutual endorsements of Islamabad's stance on Kashmir by Ankara and Baku provoked concern in New Delhi. Pakistan’s support for Azerbaijan during the conflict played a pivotal role in fostering closer ties between India and Armenia in the aftermath of the war. Observing its rival’s activities during the Karabakh conflict, India responded by significantly enhancing its defense partnership with Armenia over the subsequent four years.

Meanwhile, Azerbaijan, Pakistan, and Türkiye formalized their alliance by signing the Trilateral Islamabad Declaration in 2021, underscoring their solidarity with Azerbaijan in the aftermath of the war.

IMPLICATIONS: The supply of military equipment by India and Pakistan has significantly reduced Azerbaijan's and Armenia's dependence on Russia for weapons and ammunition. Historically, both South Caucasian nations relied heavily on Russia for defense supplies, particularly in the period preceding the 2020 Karabakh War. Between 2011 and 2020, Russia accounted for 94 percent of Armenia's major arms imports, including armored personnel carriers, air defense systems, multiple rocket launchers, and tanks. Similarly, Azerbaijan depended extensively on Russian military supplies during the same period, purchasing armored vehicles, air defense systems, Smerch rockets, transport and combat helicopters, artillery, multiple rocket launchers, and tanks.

India considers Armenia a strategic partner in the South Caucasus and has consequently deepened its military ties with Yerevan. Armenia has emerged as the largest foreign recipient of Indian weapons, with defense contracts concluded since 2020 estimated at US$ 2 billion. According to a report by the Indian Ministry of Finance, Armenia has become the leading importer of Indian arms, securing deals for the purchase of Pinaka multiple-launch rocket systems and Akash anti-aircraft systems. This development reflects a significant realignment in the defense landscape of the region.

In September, Azerbaijan formally introduced Pakistan’s fourth-generation JF-17 Thunder Block III fighter jets to its air force, marking a significant milestone in defense cooperation between the two nations. This development followed a US$ 1.6 billion agreement signed in February for the acquisition of JF-17 Block III aircraft. The deal includes not only the supply of aircraft but also ammunition and pilot training provided by Pakistan. The advanced combat capabilities of the JF-17 Block III are expected to enhance Azerbaijan's military edge in the South Caucasus. Notably, Azerbaijan has requested 60 JF-17 jets, intended to replace its entire fleet of aircraft, making this the largest defense export deal in Pakistan’s history.

The defense agreements between India and Armenia, as well as those between Pakistan and Azerbaijan, have significantly diminished Russia’s position as the principal supplier of weapons and ammunition to the South Caucasian nations. This shift has been exacerbated by Russia’s ongoing war in Ukraine, which has undermined its ability to deliver weapons in a timely manner under previously signed contracts. The entry of India and Pakistan into the regional defense market has provided Armenia and Azerbaijan with an opportunity to diversify their military procurement, reducing their historical reliance on Russian defense supplies.

The entry of India and Pakistan into the South Caucasus has resulted in the formation of two rival blocs competing for regional influence. One alliance, referred to as the Three Brothers, comprises Azerbaijan, Türkiye, and Pakistan, while the opposing group includes Armenia, Iran, France, and India.

For India, Armenia holds strategic importance as a potential bridge to access the vast market of the Eurasian Economic Union (EAEU). New Delhi views Armenia as a vital transit hub for connecting Indian goods to EU countries and envisions its role in facilitating bilateral or multilateral partnerships with nations such as Iran, France, and Greece to implement strategic connectivity projects in the South Caucasus.

Conversely, Islamabad considers its partnership with Azerbaijan critical for countering India's influence in the region. Azerbaijan has also emerged as a key player in the energy transit corridors connecting the Black Sea, South Caucasus, and Europe, further enhancing its geopolitical significance. This dynamic positions Azerbaijan as a strategic ally for Pakistan, particularly in the context of their shared interests in limiting India's regional ambitions.

CONCLUSIONS: Pakistan's defense cooperation with Azerbaijan and India's arms sales to Armenia are shaping new security dynamics that link the South Caucasus and South Asia. The extensive defense contracts between India and Armenia are poised to strengthen Armenia's position as a strategic ally for India in the region.

India's military partnership with Armenia is influenced by its geopolitical rivalry with Pakistan, which is actively supporting Azerbaijan's defense capabilities. Both Pakistan and India aim to secure reciprocal cooperation from the South Caucasian nations to advance their strategic interests. For Pakistan, Azerbaijan holds particular importance as a potential partner in trans-regional energy cooperation, given Pakistan's energy deficiencies. Azerbaijan's pivotal role in the energy transit corridor connecting South Asia and the South Caucasus further underscores this strategic alignment.

Conversely, India, as an observer in the Eurasian Economic Union (EAEU), is working to deepen its cooperation with Armenia across economic sectors, with a particular emphasis on defense. Armenia's strategic position could also facilitate India's broader connectivity initiatives with Europe. Meanwhile, Pakistan is likely to leverage its relationship with Azerbaijan to counterbalance India's growing influence in the region, highlighting the interconnected and competitive geopolitical landscape of the South Caucasus and South Asia.

AUTHOR’S BIO: Syed Fazl-e-Haider is a Karachi-based analyst of the Wikistrat. He is a freelance columnist and the author of several books. He has contributed articles and analysis to a range of publications. He is a regular contributor to Eurasia Daily Monitor of Jamestown Foundation.

By Vali Kaleji

March 28, 2024

The development of military and defense relations between Azerbaijan and Pakistan and Armenia and India is an important consequence of the political arrangement and the balance of forces after the Second Karabakh War. However, Pakistan’s non-recognition of Israel has prevented Baku from forming a “quadruple alliance” with its three strategic allies, including Turkey, Israel and Pakistan. Armenia, after defeat in the war and amid dissatisfaction with its traditional ally Russia and the Collective Security Treaty Organization (CSTO), views India, France and Iran as new strategic options, however, Iran prefers Armenia to maintain its traditional and strategic relations with Russia. The tripartite cooperation between Armenia, Iran and India focus efforts on “soft balancing” (economic-transit) instead of “hard balancing” (military-security), against the tripartite ties of Azerbaijan, Turkey and Pakistan in the South Caucasus.

By Mehmet Fatih Oztarsu

February 27, 2024

Armenian Prime Minister Nikol Pashinyan seeks a new path forward following Azerbaijan’s seizure of Nagorno-Karabakh and the radical shift in regional dynamics in the South Caucasus. His initiatives aim to revitalize Armenia and resolve longstanding issues, forging a new regional posture. However, domestic divisions and external challenges complicate his efforts. Azerbaijan has not responded to his calls for alternative cooperation while he remains skeptical of Azerbaijan’s overtures. Therefore, Pashinyan prefers to deal with Armenia’s domestic priorities and move carefully towards regional cooperation.